College of the Holy Cross.
In the state Senate he represented the 2nd Hampden and Hampshire District. He was also worked as an aide to State Representative Steven Pierce. His Senate district included Chicopee, Holyoke, Westfield, Easthampton, Granville, Montgomery, Russell, Southampton, Southwick, and Tolland, Massachusetts.
Knapik resigned August 9, 2013 to take a position at Westfield State University, leaving only three Republicans in the state Senate.
He is the brother of Daniel Knapik, the current Mayor of Westfield since 2010.
He is a member of the Republican Party. He was born in Westfield, Massachusetts Prior to being sworn into the Senate in 1995, he was a member of the Massachusetts House of Representatives from 1991 to 1995 and a member of the Westfield School Committee from 1986-1990.
Married Kathleen Knapik.