My question involves criminal law for the state of: Nevada
So late in August I was given a bicycle by a friend that owed me a small amount of money but wasn't able to pay me back. He told me he felt bad about his unforeseen circumstances and that I should be able to get at least $50 to $100 on Craigslist or at a pawn shop. In a hurry to cut my loses and receive whatever I could for it I simply sold it to a pawn shop for $75. Afterwards we ceased our friendship as I felt he had wronged me so we've obviously had no contact since. Fast forward nearly two months as of today and I hear a knock on my door only to find a deputy from the sheriff's department greeting me. He informs me that the bicycle I had sold to the pawn shop was reported stolen and proceeded to ask specific questions of how it came into my possession. I was truthful with him and gave him the name and address of the person who had given me the bicycle. I then conveyed my apologies after explaining that I had not known the nature of how he obtained it. I proceeded to ask the officer if I would be liable for this crime and charged with "petty theft" as he put it, and he responded that it was definitely possible. Is this true? Am I absolutely helpless in this situation? I have not committed any crime, and if they'd like to get technical it was at least not knowingly. What are my rights in this situation? Please help...

