The suspect wanted in connection to a fatal shooting at the West Hempstead on Long Island Stop & Shop is now in custody.

The suspect has been identified as Gabriel Dewitt Wilson, an employee at the store.

Nassau County Police Commissioner Patrick Ryder says Wilson arrived for work at the store this morning and shot two people, a male and a female, in an office at the store. He says Wilson then entered a second office where a 49-year-old manager was killed.

Sources say one of the injured victims is in critical condition and the other is in stable condition.

Ryder says the suspect then fled to 100 Terrace Ave. in Hempstead, which was later surrounded by Nassau’s SWAT team and Hempstead police. He says Wilson tried to flee from the building but was apprehended without injury.

The manhunt for the suspect prompted schools in surrounding communities to go on lockdown.

Earlier, police had said Wilson, 31, has addresses in Hempstead and Long Beach.

Ryder says Wilson was employed at the Stop & Shop as a cart collector.

Ryder also said that Wilson was treated once in Nassau for a mental health illness. He also has a "small criminal background" but Ryder didn't say what else he had been arrested for.

Patrick McGrath, who works in the store's deli section, was just arriving for his shift when he says a co-worker told him about the shooting and they ran out of the store.

He told News 12 that he heard from other employees that Wilson had been transferred from the Oceanside Stop & Shop location because of a "matter that happened" there. 

McGrath says Wilson seemed "aggravated." He also said that Wilson told co-workers that he was shot in the head several years ago in Chicago.

Nassau County Executive Laura Curran thanked authorities who helped apprehend Wilson and made a comment about the national attention surrounding gun violence.

“That reality has come home,” she said.

"We are shocked and heartbroken by this act of violence that occurred at our store located at 50 Cherry Valley Road in West Hempstead, NY, today. Our hearts go out to the families of the victims, our associates, customers and the first responders who have responded heroically to this tragic situation. At this time, we are cooperating fully with local law enforcement on the investigation. The store will remain closed until further notice, and we appreciate the Long Island community's support during this difficult time."