Rockvam said the allegation from a preliminary investigation is that Hall shot at two Cody men -- 32-year-old Joshua Porter and 45-year-old Joseph Jewell -- after an altercation that may have been related to drugs.
Police received a 911 call just before 7 p.m., reporting that shots had been fired at 1026 1/2 Bleistein Avenue.
Responding officers found the residence vacant and evidence that a shooting had occurred, Rockvam said. Witnesses reported having seen a goldish 1970's Chevrolet pick-up speeding away from the area.
Police later located a truck matching the witnesses' description two hours later in the Riversbend Trailer Park. The vehicle's rear window had been shattered, apparently from being shot, Rockvam said.
Porter and Jewell were then contacted by police. Rockvam said a preliminary invesigation suggests that Porter and Hall got into a conflict at Porter's Bleistein Avenue residence. It ended with Hall being removed from the residence by force, Rockvam said.
The allegation, Rockvam said, is that Hall then re-entered the residence with a pistol and began shooting at Porter and Jewell. The two men fled through a back door and drove off in the gold pick-up, Rockvam said of the allegations, and Hall continued shooting at their vehicle as they drove away.
Just before 3 a.m., Hall was located at his East Sheridan Avenue home and arrested without incident by the Cody Police Department's Emergency Response Team. Porter has been arrested on suspicion of conspiring to deliver a controlled substance, Rockvam said.
It will be up to the Park County Attorney's office to determine what charges, if any, are formally filed in connection the incident. A circuit court staffer said it was unlikely that either Hall or Porter would make their initial appearance any earlier than Friday morning.