ALTHOUGH THIS FACT PATTERN IS SIMILAR TO MULTIPLE CHOICE QUESTIONS 14 tо 17, IT HAS SLIGHTLY DIFFERENT FACTS. Dаve suggested tо Fred thаt they rоb а bank. Fred agreed and said that he would go along with Dave when he tried to rob the bank. Unbeknownst to Dave, Fred did not actually want to rob the bank. Rather, he was a member of a terrorist group who wanted to explode a hand grenade in a public place as an act of terror. When Dave asked him to participate in the bank robbery, Fred saw an opportunity to fulfill his goal while having Dave along as an unwitting armed backup. The next day, Dave and Fred approached the bank carrying handguns. Fred also had a hand grenade in his jacket pocket that Dave did not know about. Just as they walked in the bank’s front door with their guns drawn, to Dave’s astonishment, Fred removed the grenade from his pocket, pulled the pin, and threw the grenade into the bank. Both Dave and Fred immediately ran out of the bank. The explosion from the grenade damaged the bank and also killed two people. Which of the following is the best explanation regarding Dave's criminal liability for the death of the two people who were killed when the grenade exploded in the bank?