Webwrong 1: Verb Tenses (past)

I have seen something strange yesterday, while I am walking by the park in the centre of the city.
An old man had talked to himself, he had talked about a person who was coming to kill him that very same night. People look at him and ask him if he is alright, but he only answered that nobody can help him, that he is going to die.
Suddenly, when a young man has phoned the 061 medical service, the old man runs away very quiclky screaming: “Leave me alone!!! No one can save me from my messenger of death!!”. He disappeared behind the trees and we can’t see him anymore.