Nine year old dies a week after father Officer Dannie Marchan shot him

CHICAGO

Authorities say a 9-year-old boy has died about a week after his father, a Chicago police officer, shot his two children in a murder-suicide.

The Cook County Medical Examiner's office says Anthony Marchan died Tuesday at Mount Sinai Hospital.

Police Officer Dannie Marchan also killed his daughter, 7-year-old Alizay, before turning the gun on himself Sept. 15.

Chicago police have said the shootings at Marchan's home stemmed from a domestic dispute between the officer and the children's mother.

They said Marchan had been with the department about four years.