There's a well-known story about a man who escaped a murder conviction because he was at a Dodgers game when the murder happened, and there just happened to be a TV show filming at the stadium that just happened to record him there.

https://innocenceproject.org/news/how-curb-your-enthusiasm-s...

I'd like to think motive and a police sketch wouldn't be enough evidence for a conviction, but that's optimistic.