Authorities in Colorado are investigating whether marijuana candy played a role in the suspected suicide of a 22-year-old Oklahoma man.

Luke Gregory Goodman of Tulsa died Tuesday at a hospital after apparently shooting himself in the head. Witnesses say he ate several marijuana candies before the shooting while on vacation at the Keystone ski resort.

Summit County Coroner Regan Wood released a statement Thursday saying the circumstances surrounding Goodman's death are consistent with a suicide. But he said toxicology reports, which would confirm the presence of marijuana in his system and its possible role in his death, would take about three weeks to complete.

A sheriff's report says a friend told investigators that Goodman ate four pot gummy bears.

Caleb Fowler, who was with Goodman, tells KCNC-TV (http://cbsloc.al/1bvnKGu ) that Goodman became jittery and incoherent after eating the candy.