Watcher had a video on some arson case from the 80's where the arsonist was recording the fires he did and at one point an investigator realized that one of videos of the fires he had responded to and recorded himself, was taken at the same time as his video from 3 feet behind him. They never caught the dude.
It definitely wouldn't. There have been several recent 'proofs' of the level of scrutiny we face where serial killers are getting caught before they ever get to the famous numbers in the 'serial' part. That one fella recently, as an example, where the police released video of a man with a limp walking near a crime scene, and they caught him at victim #3. In the 90s, it likely would have taken dozens of victims before we caught a lucky video like that.
I mean, you can build a drone with parts bought with cash, and napalm is just bar soap gently dissolved in warm gasoline, and a relay/battery/grill sparker circuit can be triggered with the drone's remote control
Not that I ever think about what you could do with these things or any combination thereof...