The Chicago police officer fatally shot Saturday morning at a North Side hospital was identified as 38-year-old John Bartholomew, according to the Cook County medical examiner’s office.

Bartholomew, who had been with the department for a decade, was shot alongside another 57-year-old officer who was in critical condition as of Saturday afternoon.

After the shooting took place at Endeavor Health Swedish Hospital, both officers were rushed to Advocate Illinois Masonic Medical Center, where Bartholomew was pronounced dead and the second officer remains.

The man who allegedly shot both officers while under medical observation at Endeavor Health Swedish Hospital was one of a pair that had originally attempted to rob an Albany Park dollar store at gunpoint. The second man was still at large Saturday, internal police information shows.

Chicago police officer killed, another critically injured in shooting at Swedish Hospital: ‘A devastating loss’

The man in custody allegedly fired shots at the officers around 11 a.m. Saturday before he fled the hospital naked, and later was apprehended, officials said in a statement. The 57-year-old officer was not publicly identified as of Sunday morning and no charges against the suspect had been announced.

Hospital officials said in a statement that the man was screened when he arrived at the hospital per “public safety weapon detection protocols,” and that he was escorted by law enforcement at all times.

According to a source with knowledge of the investigation and an internal CPD bulletin, police originally arrested the shooter just after 8 a.m. Saturday morning, when Albany Park (17th) District officers arrived at a Family Dollar located at 3239 W. Lawrence Ave. for a call of an armed robbery in progress.

Two men had allegedly escorted a store employee to the store’s office at gunpoint, beat her up to the point of bleeding and facial injuries and demanded access to the cash register and searched the victim’s purse. Then they fled before police arrested one of the men at the intersection of Kedzie and Roscoe streets. The second man, according to the bulletin, remains at large, although police recovered his backpack from inside the Family Dollar.

Officers from wagon 1772 took the man in custody to Endeavor Health Swedish Hospital for observation, police Superintendent Larry Snelling said Saturday.

This is a developing story. Check back for updates.