Lexington police have just released new information about another suspect they're now looking for in last week's deadly robbery at a Shell Station.
The man police say drove Lavonna Dillon to the Newtown Pike business last Thursday was 54-year old Gary Isaacs.
Police say Isaacs knew Dillon had a gun and intended to rob the store.
When Dillion tried to leave the gas station after the robbery, police say she pointed a gun at them. In defense the officers opened fire and she was struck and killed.
Police say they've been told Isaacs admitted to others that he saw the shooting while waiting nearby.
Police have not commented on his relationship to Dillon, but for now say he is wanted for robbery.