Bob moved in with his girlfriend, Susan, and her three small…

Bob moved in with his girlfriend, Susan, and her three small children, Tommy, Sarah, and Tony.  Weeks after moving in, Bob noticed bruises on Tony’s legs and arms.  He asked Susan about the bruises but she denied knowing anything about them.  About one year later, Tony died from blunt force trauma to the head, caused by being repeatedly beaten by Susan.  If there was no record of Bob contacting the police or child protective services, can Bob be held criminally liable for the death of Tony?

Chris is driving on a deserted road when he sees an overturn…

Chris is driving on a deserted road when he sees an overturned vehicle on the side of the road.  He slows his car and sees his former girlfriend, Beth, in the car and screaming for help.  Chris, still mad at Beth, refuses to help her from the car and drives away.  Moments later, the car explodes killing Beth. Can Chris be held criminally liable for the death of Beth?