Leslie-Costello-Obituary

Photo courtesy of Harry H. Witzke's Family Funeral Home Inc.

Leslie C. Costello

Ellicott City, Maryland

May 11, 1930 – Sep 30, 2025 (Age 95)

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BORN
May 11, 1930
DIED
September 30, 2025
AGE
95
LOCATION
Ellicott City, Maryland

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Harry H. Witzke's Family Funeral Home Inc. Obituary

Leslie C. Costello, PhD, spent 60 years of his life unraveling the mysteries of cancer... mostly prostate cancer. Seven years ago, he developed a treatment protocol which was prescribed for a patient with terminal, late-stage prostate cancer. The treatment cured the patient of his cancer... it...

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These were such beautiful words for such a wonderful person whom I had the absolute privilege to care for. Your momma and papa, a couple so beautiful and in love. I remember they would always have to see each other before bed and say their good nights, the words he would say to her were filled with such love that I would cry after hearing him. I thank your family so much for letting me take care of such precious souls, I know I´ll miss them forever.

I didn't know your dad or your family, but your memory of him makes me wish I had. What a lovely, loving tribute. While I'm sorry for your loss, you have the wonderful gift of vivid and happy memories. Surely you will treasure those forever.

What a beautiful tribute to your dad.

What a wonderful tribute to your dad.

Such warm and hopeful thoughts. A purposeful life lived with love and dedication to family. An example to follow.

I didn´t know this gentleman, but your obituary is so good, it makes me feel like I wanted to know him.

This is a truly wonderful obituary. I did not know your father but am sure he would be delighted to have been remembered and honored like this. Thank you for sharing his and your story.

This "story" is why I picked up my mom´s habit of reading the obituaries every day. I don´t know your dad or your family, but you´ve certainly done a lovely job of writing his mini-biography. That wonderful life is made even better by this: you really appreciated it. I hope the IHOP gathering is a great celebration of your parents´ lives!

Never met your dad, but felt yours---and the world's---loss after reading your beautiful tribute in today's Baltimore Sun. He led a remarkable life by your account, especially as your dad. I, too, had a father who was mentor and nurturer to my brothers and me. He didn't discover a cure for a prolific cancer, but he did raise us with great love, dying at age 93. I think Dr. Costello and my dad would have liked each other. I always put money in the Salvation Army buckets. This year, I'll do it...