The Danbury Police Department is mourning one of their own. Sgt David Cooney passed away Sunday night at the age of 45 after a long battle with cancer. He was a 20-year veteran of the department. His most recent assignment was supervisor of the Crime Scene Unit, administrator for the department’s records management system, and liaison to several external agencies. Cooney was also past President of the police union. Police said in a statement that he's been a member of the Police family since birth. His father, Captain Dennis Cooney, served for 21 years before succumbing to a fatal heart attack while on duty in 1994. The statement notes that Cooney was highly respected by those who knew him and will be remembered for his dedicated service to the department and the city, and for his great sense of humor.