1. Water-Pistol Kelly is robbing the Smalltown Bank. While he is holding the bank manager at gunpoint in the vault, a customer, Kitty, suffers a heart attack and dies in the lobby.
2. Assume that at the time Kitty had her heart attack, no one in the lobby, including Kitty, knew a robbery was underway. Is Kelly guilty of murdering Kitty?
3. Now assume that just before Kitty had her heart attack, she heard from a teller that someone was holding the bank manager at gunpoint in the vault. Kitty had a nervous disposition, and was frightened (even though others in the lobby were not) that the robber might soon threaten her. Her heart attack was brought on by these fears.Is Kelly guilty of murdering Kitty?