Police released the additional details in the death of Kyle A. Van Winkle, 30, of Smithville. Police have said it could take four to six weeks before authorities can determine how Van Winkle died after the altercation outside Arrowhead Stadium during Sunday’s game. Police have said Van Winkle’s body did not show obvious signs of trauma.

A man who owned a Jeep returned to the vehicle during the game and found Van Winkle inside, leading to a fight between the owner and Van Winkle, police said. Officers responding to a disturbance call found Van Winkle on the ground unconscious. He died later at a hospital. Three people were taken into custody Sunday evening, but all were released Monday with no charges filed.

Police have said investigators are awaiting autopsy and toxicology reports before deciding whether Van Winkle’s death was the result of a crime.

Police spokesman Officer Darin Snapp confirmed in an email Tuesday that the Jeep that Van Winkle was found in was similar to vehicle he had arrived in, and that the Jeep that Van Winkle arrived in was parked nearby. The Jeep that Van Winkle was found in also showed no signs of a break-in and was unlocked when Van Winkle climbed in, according to Snapp.