A Cook County (IL) sheriff’s officer from Crest Hill has died as a result of heart problems after collapsing during a run at the department’s training academy in Maywood, where he was an instructor, authorities said.
Officer Jason Gallero, 45, collapsed Thursday morning while participating in a run with the Cook County Sheriff’s Police Training Academy and was pronounced dead at Gottlieb Memorial Hospital in Melrose Park, according to the Cook County medical examiner’s office.










