Police have identified the two victims shot and killed outside of the Arundel Mills Mall last Friday night.
Investigators say 30-year-old Chonsay Laquez Green of Capitol Heights and 25-year-old Jeneen Desiree Dunn of Greenbelt were shot and killed by James Edward Coleman of District Heights.
Coleman was later killed at a home in District Heights after an exchange of gunfire with police.
Using information from witnesses, Anne Arundel County Police tracked Coleman's vehicle from Arundel Mills to a house in the 8100 block of Rydal Road in District Heights, Md., on Saturday morning. They then called for backup from Prince George's County Police.
At about 10 a.m., Coleman emerged with an AK-47 and a shotgun, and opened fire.
Police fired back, and Coleman was killed.
A Prince George's patrol officer was struck three times in the face with shotgun pellets. His injuries are non-life-threatening.
A caller to NBC4 said he heard about 20 gunshots.
Police are not saying whether they have a motive for the shooting outside the mall.
Anyone with information should contact Detective J. Gow at (410) 222-3417 or contact Metro Crime Stoppers (866-7LOCKUP) to remain anonymous.