Hennessey played for the Patriots from 1965-1966, where he racked up eight interceptions in 28 career games. The former Holy Cross football standout earned rookie of the year honors with the Pats in 1965. Hennessey, a Bostonian himself, played football at Brookline High School, and was a classmate of current team owner Robert Kraft. Mr. Kraft released a statement on the passing of Hennessey:
"Tommy was a great guy," Kraft said in a statement. "He was a football star in high school and college, and I can remember being so proud that he rose to the professional level, playing two seasons with the Patriots. As big of an impact as he made on the field, his greatest contributions came off the field. He was a great mentor to so many kids and really dedicated his life to helping others. We are proud that being a Patriot will forever be a part of Tommy's legacy. My thoughts and prayers are with his family and his many friends."