Replying to Shitty situation.

Alright NS im in need of some insight. This weekend some buddy's of mine drove to Fort Collins from Denver to party. Well last night we were chilling at one of my friends place after the party and I was too waisted to walk home so I crashed at his place, along with my three friends from Denver. Anyways, when we woke up this morning my friend (who's place I was staying at) claimed that his bag of greens was missing and is trying to place the blame on my friends. I for sure didn't take it but am skeptical of my friends from Denver because they stayed up longer than me. They claim that they didn't take it and even helped look for the bag. The kids whose place we were at is still pissed and I dunno what to tell him.