Technical Sergeant Chris Rock died as the result of cancer that he developed following his assignment to the search and recovery efforts at the World Trade Center site following the 9/11 Terrorist Attacks.
Technical Sergeant Rock had served with the New York State Police for 26 years. He was survived by his wife, mother, brother, nieces, and nephews.
Source: ODMP
https://www.odmp.org/officer/26911-technical-sergeant-christopher-philip-rock