Brock was in the market for his first motorcycle. all of his friends had them and regularly went on long group rides. he knew he wanted something older because he preferred the style but he didn’t know much about the engine size. the bigger the engine the more power the bike has and he looked at bikes with engine sizes ranging from 250 cc to 1500 c he decided on the bike with the 1500 cc engine. it was extremely powerful and he knew it. he let his younger brother borrow the bike for a weekend ride with friends. the brother ended up in wrecking the bike and it was likely totaled the police report stated that he revved the engine, attempted to do a wheelie (a move which he knew was risky), and the bike threw him off the back. if the brother is charged with a crime, which level of mental culpability is most appropriate?