A 17-year-old gang member, identified as Kendrick Jackson, had already been arrested in connection with the shooting. His name was released after the D.A.'s office filed murder charges against the teen as an adult.
Police said a group had gathered to watch the L.A. Lakers game at a home near 14th Street and Colorado Avenue at about 8:30 p.m. Sunday when suspects in a mid-sized sedan opened fire.
Five people were hit, including 6-year-old Amarion Adams. Amarion died from his injuries on Wednesday morning at Loma Linda Medical Center.
Police believe the shooting is gang related, and Amarion was simply in the wrong place when the shots were fired. Authorities do not believe any of the five victims were the intended targets.
Scott drives a silver Chevy Malibu, which matches the description of the vehicle the shots came from Sunday night. Police are asking residents across the region to be on the lookout for him.
Anyone with information is urged to call the San Bernardino Police We-Tip Hotline at (909) 384-5656.