Multiple shooters are likely responsible for the Lincoln University shooting that killed a 25-year-old man and wounded six others on Saturday, investigators said Sunday night.

Zecqueous Morgan-Thompson, 21, of Wilmington, Delaware, has been charged with carrying a concealed weapon without a license and is being held at Chester County Prison on $25,000 bail, Chester County District Attorney Christopher de Barrena-Sarobe said during a press conference. However, he said investigators don't know whether the gun was used in the shooting. MORE: Bill to allow Pennsylvania lottery winners to remain anonymous heads to state House

Investigators have a "strong belief" that multiple shooters were involved, but they do not believe the shooting was a premeditated mass shooting, de Barrena-Sarobe s

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