Will he comeback alive?
Trump is not an idiot and will no go to Israel alone. He has some bodyguards and some elite soldiers guarding him and aside from that the Israel government also places a huge security protocol to guard the government. There are also a huge force of US military that are monitoring the condition of the President. Assasination would be a mission impossible.
Exactly. When a president goes into another country (or even here in the US) he is extremely well guarded and next to impossible to assassinate.