Trooper Mark Ondus died Thursday, Oct. 9, at the age of 56, according to State Police Superintendent Steven James.
Ondus spent part of his career assigned in and around the World Trade Center site in the aftermath of 9/11. His illness was tied to that service, State Police said.
He retired on Jan. 20, 2021, after 26 years with the agency. His final assignment was with Troop T in Chautauqua County…