A sees B and C near the edge of a cliff. B is laying on the ground and is obviously seriously hurt. C is standing nearby.
A picks up B intending to take B to the hospital. As A turns around with B in his arms, B's legs strike C and send C over the cliff and C dies. In the process of picking up B, A causes B's broken rib to puncture his lung and B dies.
What torts has A commited? (It's a trick question)