Transport police officer - level 2
A man threatened to shoot passengers on a train, so a transit police officer removed him. This happened in Philadelphia, USA.
The man and the policeman started to fight. The man pushed the policeman to the ground and hit him. The policeman restrained the attacker on the ground, but the attacker managed to get away from the police. He returned to the train and tried to grab a child.
More police officers were then called, and the man was arrested.
Difficult words: threaten (say that you will do something bad to somebody), restrain (make stop moving), grab (catch).