WOW.. Can't believe it has been a year since Jack's passing! I hope the pleasant memories of his past brings consolation, solace and smile to his family and friends. As far me, his smiling face whenever we met will be in my memory forever.
- "Swami" Swaminathan, Ph.D, FASME

I love you Dad!

Roxy and Jack's many friends--I am saddened to learn that Jack will not be sharing hunting stories of the Texas hills and his joy of being back in Texas near family. He was indeed a great friend who always shared his best perspective and knowledge for wisdom that was generous and sensative to the needs of others. He is noted for his success with technical problems with the military, anti-terrorist concerns and challenging problems; but, he was always interested in listening to my problems and could insert a genuinely objective comment that I had not considered.
This note is written many months after his passing and gives me special pride in knowing and learning from Jack
My very best to all of Jack's family and friends!
Mike Hargett

Roxy and Jack's friends and family- I was shocked to learn of Jack's passing. He was a friend and colleague who helped me "learn the ropes" in the business world as I transitioned from the Navy. He was generous with his time and experience. And I always liked hearing about his motorcycle trips and his plans for your Texas home. He was always upbeat and optimistic, and as others know, always had a smile on his face. Roxy, I'm so glad to have met you and to have spent a little time with you both. I hope you are doing as well as circumstances permit. My deepest condolences to you and the rest of the family.

Jack was one of my very favorite neighbors in La Ventana... from the moment I met him and Roxy, I wanted to 'know' them. He always greeted me with a smile, attended social events, and participated in being neighborly beyond most. My heart is very sad to know I won't see Jack around and my thoughts and prayers are with the family for the loss of this great gentleman. -DeeDee Williamson Driftwood TX

My best friend, my hero, the love of my life, my husband, my everything ... now an angel in heaven. My heart aches beyond belief because I can't see your handsome face and beautiful smile, I can't feel your tender touch and warm embrace, I can't hear the explanations you had for my ever ending questions about everything and anything and those loving words that always made me feel so special. My heart will never mend, I will continue to ask why, I will do the things I think you would want me to do, and I know someday we'll be together again because true love can never end. "You came to me like the dawn through the night, just shining like the sun, out of my dreams and into my life, your are the one your are the one; said I loved you but I lied, 'cause this more than love I feel inside, said I loved you but I was wrong 'cause love could never ever feel so strong". Forever yours, sending butterfly kisses, Roxy

Roxy and Jack, we met in 2018 in the beautiful French town of Archachon. Only a few days, but I will remember this time forever. The warm atmosphere surrounding Jack was overwhelming. I feel a great loss of a precious man.

Roxy, my heart hurts for you. My prayers are with you during this time of grief.

Dear Roxy and extended family:
my heart felt sympathies due to the untimely passing of Jack. This is very sad and unexpected news. I worked at SwRI, Eng. Division, and knew him for many years. He always had a smile and a great sense of humor. We sure will miss him.
May his soul rest in peace.
- Swami (V. P. Swaminathan, Ph.D),
President & CEO
TurboMet International

I am shocked and deeply saddened to hear the news of the sudden & untimely demise of Mr John paul Riegel III.
it is really a loss to his family as well as IBS in particular. On this occasion we remember the active participation and great contribution of John Paul to the IBS. The ethics and dedication of john Paul transformed the IBS into its present form.
On behalf of DRDO fraternity and from me personally, we convey our deep sympathies and fervent hope that his family will have the resilience to bear the loss.

May his soul rest in peace.


Dr G Satheesh Reddy
Secretary DD R&D & Chairman DRDO

Expressing sincere condolences Roxy, children, grandchildren, family and friends. My name is Nashla Showery, (McAllen, TX) Ameleb member and friend of Sharon and her husband-- for many years.
In reading Jack's life; I was touched by the many achievements and contributions that Jack gave to mankind through his God-Given talents. He lived his purpose for God, his wife, children, family and friends. Although I never met him, knowing Sharon --Jack's sister--I am assured that he was raised to be a "giver" of Good to all he met and was involved in. BY Jack's transition into the Spirit--may we as humans acknowledge a life-lesson to always appreciate the "NOW" and the good people that God puts in our paths as blessings and make them blessed memories for ourselves. May the Peace of Jesus be with all those he loved during this time. `

Roxy,
Bob and I certainly enjoyed getting to know you and Jack, and our conversations. Your love for one another was obvious and our hearts go out to you and your family (and GP). May God bring you peace and comfort through family and friends, and the assurance that you and Jack will be reunited in heaven.

My name is Ollie Scott from Dayton Ohio. I met Jack and Roxy for the first time in England at an HVIS conference travelling along with my guy Kevin Poormon. Roxy and I met at a pub waiting for our men to be set free to explore the land. We became running buddies. When I met Jack, he had the most loving and passionate spirit and together they were an amazing couple. Jack and Roxy made our visit more interesting, educational and adventurous. I was totally impressed and mesmerized by Jack's superb driving skills on the opposite side of US driving. Jack drove us to see the White Cliffs of Dover, we explored quaint towns and places. Jack maneuvered the rode ways with confidence and zest. I will never forget this wonderful experience. The next year, I attended a conference in San Antonio TX and reached out the Roxy for a possible visit. I was welcomed with open arms by Jack and Roxy. They made me feel extremely special and blessed that I had found good, decent, fun and exciting new friends. Here is when I got to see the whole Jack, a caring son, a caring father, a caring grandfather, a caring husband and most of all truly a caring man. I was introduced to his mother, daughter, grandchild, and close neighbors. Jack was so excited to share and provide a good experience from a true Texan point of view. They took me to a real cowboy dance hall, a hillside winery, a music festival, and much more. We had so much fun. I could go on but my eyes are starting to swell with tears of sorrow. Roxy, I will never forget Jack on how he accepted me so quickly in your lives as a friend. God Bless you and keep you safe and strong. Ollie

Jack was a dear friend and colleague whom I met through our mutual interest in Ballistics. We started our friendship working together as joint chairmen of the 12th International Symposium on Ballistics in San Antonio in 1990 and continued our friendship and work together until his untimely passing. Jack always had a smile on his face, was always ready to share his great laugh and was never without an interesting and funny story. He was a knowledgeable engineer and scientist as well as a sought after teacher of the Ballistics Sciences. I recently visited Jack and Roxy at their new homestead on Covered Bridge Drive in Driftwood Texas. They were fulfilling their long term dream of living in the Texas Hill country with place for family and friends to visit and stay. Jack will be sorely missed by all who knew him. My sincere condolences to Roxy, the family, and his colleagues. My thoughts and prayers are with you.

Although I only met Jack a few times, the news of Jacks passing was a great shock. It is not often that you meet someone so infrequently and yet feel a deep connection with them. I will always remember his quick wit and kind words as we entertained each other during down times at various conferences and exhibitions. And I will always remember that each time I realised we would be at the same event it made me smile knowing that it would be a fun few days. Roxy and Family my thoughts are with you, he was a very special man and the World is a darker place without his physical presence. His memories and stories will live on through people who met him, and although there will always be sadness that he has passed, I am sure I am only one of many who will always think of Jack and be grateful that we had the chance to meet him. I can only tell you what you already know, your husband, dad, and grandpapa was an international star! He had the unusual combination of being funny, clever and a pleasure to spend time with. Jack will be remembered fondly and missed by many people from many different countries and many walks of life.

Dear friends: this is David Cendon from Universidad Politecnica de Madrid, Spain. It is very hard to believe that Jack has passed away. I remember a dinner we enjoyed in Tarragona, Spain, long time ago, as well as several ARA meetings were he was a very appreciated and respected person. I remember him always with a big smile in his face. My condolences for the family. We'll miss him at the UPM in Spain!

I had the chance and the honor to meet and Jack through the international ballistics committee, the aeroballistics range association, and the international ballistics society. His intelligence, his charisma, his openness and kindness have pushed all of us towards the best.
Roxan

So sorry

My dad was the most amazing person to ever live. I've never met a man as intelligent, strong, and kindhearted as him. He was NEVER too busy to stop and talk with me. Whether it was a question about black holes, home repair, politics, religion, work, or just casual conversation - my dad was always ready to engage. I doubt there is any person alive with as many close friends as he had. He was so easy to love...it was impossible not to become his friend after spending just 5 minutes with him. I was on my way to spend Grandparents Day with him when this nightmare happened. I would give anything to go back in time and leave my house just a little earlier...to have just one more chance to hug him and tell him that I love him. I cannot imagine a world without my dad in it, and I know that I will think about him and miss him every day for the rest of my life. I love you dad. Thank you for everything....

Jack was a valued colleague but even more important he was a friend. His smiling face and wry humor, along with his ever insightful observations will be greatly missed. My profound condolences to the family.

From the moment I met Jack I knew I had made firm friend. I worked with him on the International Ballistics Society, which was Jack's concept. His energy and commitment was outstanding and an example to all. He always had time for you and loved sharing stories about work and his family, of which he was immensely proud. He took an interest in my work and family. I always valued his counsel, willingly given. I wIll be eternally grateful that I was allowed to know Jack and call him a friend.

Jack was a good friend and a great man - I really enjoyed our time together as colleagues, and have fond memories of road trips across Germany, Switzerland, Belgium and the Netherlands. Jack always had a good story, an interesting insight, or a piece of trivia. Truly one of the most knowledgeable men I have ever met, and Jack always had time to mentor, teach and share. I will miss you my friend!

Roxy - I'm glad we had a chance to meet, and my thoughts are with you during this difficult time. Jack will always be with us in spirit, smiling down on us now, just as he always smiled thru life.

My thoughts and prayers go to John's family and friends, and especially to my dear friend Roxy who was my high school friend.

Jack Riegel was a highly appreciated scientist and colleague, and a very dear old friend of mine. He was a long-standing member of the International Ballistics Committee, formed in 1993, and was instrumental in giving it firmer organisation and terms of reference in the early 2000's. The main purpose of the IBC was to safeguard the organisation of the International Symposia on Ballistics (ISB). Jack and the Southwestern Research Institute were important reasons why two of these Symposia, 1990 and 1999, came to be well organised in beautiful San Antonio. TX.
Jack succeeded me as chairman of the IBC in 2008, and together with the rest of the Committee we brought it to a successful conclusion at the 25th ISB in Beijing, China, in 2010. On site there we founded the International Ballistics Society, which assumed all previous tasks of the IBC, plus many more. Jack had been a strong driving force behind the preparations to form the Society, and was unanimously elected the first President of the new IBS. Under his skilled leadership the IBS was built up to be the successful and well established organisation which it is today.
I was fortunate enough to meet with Jack in Stockholm twice in the last 12 months, latest at Midsummer this year, when he came to work here together with Don Berry, and where I had the pleasure of spending a whole, leisurely day with them, including a visit to the Wasa warship museum. I was expecting to see Jack many more times, and was very sad when I heard of his death. My thoughts and condolences go to Roxy and his other relatives, and I regret that I shall not be able to attend the funeral proceedings, which are due already this week. Jack will be remembered and much missed by me and many others in the ballistics community!

Sincere condolences to the family and the colleagues. My thoughts are with you...

I and behalf of my family , pray to Almighty that his soul may rest in peace. Let the God gives enough strength and courage to his family.

Roxy: my heart goes out to you, in this painful time you are experiencing. Un abrazo.

Roxy, my heart aches for you. He was a good man and will be missed dearly.

I having many fond memories of my cousin, Jack, and miss him too. My heartfelt condolences to all.

Grant him rest O Lord, and may your perpetual light shine upon him. May his soul, through the mercy of God rest in peace.