AURORA, Colo. -- Aurora police said Monday that it is still too early in the investigation to determine what charges, if any, will be filed in a fatal weekend shooting outside a video rental store.

Police said the incident occurred at about 6:30 p.m. Saturday outside a Blockbuster store at Mississippi and Chambers streets when two men began to argue after one of their car doors dinged the other’s car door.

The wife of one of the men tried to break up the confrontation, and then all three parties became involved in a fight, according to witnesses. Police said Aaron P. Davis, 39, acquired a metal pipe type of object and hit Glen Eichstedt, 52, in the head. Eichstedt then allegedly pulled a handgun and shot Davis and his wife, Benita Coleman-Davis, 36, according to police reports.

Coleman-Davis remains in the hospital and was listed in critical condition Monday evening. Detectives have not had a chance to interview her, due to her medical condition. Eichstedt was treated and released from the hospital.

Police are trying to determine if the shooting was done in self defense.

"We need to re-interview all the witnesses in the case and then we will turn over the findings to the District Attorney's Office," said Kathleen Walsh, Aurora police spokesman.

Eichstedt had a concealed weapons permit, according to police.