This sounds like jungle justice coming from the number one citizen of the US government. Even if he clearly has the interest of the US citizens at heart, a true process should be followed. Everyone has right to live, cases involving lives should not be treated the way Trump handled this; in the eyes of the law, you are innocent until proven guilty by the court of law. I love Trump's energy, however, I will not fail to admit that Trump most times can be a dictator. 

To all citizens, especially strangers in a foreign country, they should be careful with their actions in other people's countries.  Some country heads don't treat foreigners same way they treat their own people.