To the Castillo Family please accept my deepest heartfelt condolences. I remember growing up with Frank and it brings back good memories on Texwood, playing basketball and putting on the gloves and fighting. I remember Eastwood Heights Elementary and Eastwood high school. I was fortunate enough to see Frankie pitch as a Cub against the Astros. I was so proud to say he was my friend and pitching in the majors! Frank will truly be missed! Please know you're in my prayers God Bless.