When the murderer entered, the victim was watching tv alone.
The inspectors found some evidence on the crime scene.
The first suspect told the police that he was having dinner with his wife at the time of the murder.
The other suspects were watching a soccer game on TV together at that moment.
The inspectors checked the alibis and realized that the first suspect was lying.
They arrested him for the murder.
J’espère que ça t’aura aidé :)