Prince George’s County police arrested a 22-year-old man for a fatal shooting at MGM National Harbor hotel and casino in Oxon Hill, officials announced Thursday.

Police apprehended Benjamin Williams on Thursday morning in relation to the death of 23-year-old Darnell Hawkins Jr. a day earlier. Williams fled the area after the shooting, prompting nearby schools to lock down while officers searched for him. Police said Williams being captured on video helped them identify him as the alleged shooter.

Williams now faces first- and second-degree murder charges as well as assault and gun possession charges, online court records showed. The Fort Washington man is being held without bond at the Prince George’s County Department of Corrections and had no attorney listed on online court records.

Just before noon on Wednesday, Prince George’s County police officers responded to a shooting at the food court of the MGM National Harbor hotel and casino. Police Chief George Nader said at a news conference Wednesday that Hawkins was ordering food when Williams approached and opened fire on him.

Police suspect the shooting was targeted and believe Williams and Hawkins, who was from Washington, D.C., knew each other, though they’re still investigating.

Melonie Johnson, MGM National Harbor’s president and chief operating officer, sent a message to employees on Wednesday night confirming it was an “isolated, targeted shooting inside the National Market food court.”

“Our Security team, working quickly with the police, confirmed that the suspect fled the property after the shooting. I want to thank our Security team and all employees on shift today who responded quickly to this incident and took care of our guests and each other,” she wrote. “Nothing is more important to me and to all of us than the safety and well-being of our employees and guests.”

Johnson said the food court was closed for the remainder of the day but was expected to reopen on Thursday. She added that the rest of the property continued normal operations.

She added that an employee assistance program was available for any employee who needed additional support.

This story has been updated.