Wrong place wrong time

Can you stop a murder after it’s already happened late October after midnight you’re waiting up for your 18-year-old son he’s past curfew as he watch from the window he emerges and you realize he isn’t alone. He’s walking toward Man ❤️🍫🤤 and he’s armed. You can’t believe it when you see him do it. You’re funny happy teenagers son. He killed a stranger right there on the street outside your house. You don’t know who you don’t know why you only know your son is now in custody his future shattered that night, you fall asleep in despair all is lost until you wake and it is yesterday and then you wake again and the day before yesterday Every morning you wake up a day earlier another day before the murder with another chance to stop it somewhere in the past, lies and answer the trigger for this crime and you don’t have a choice, but to find it?