Re: The real point
When you report the car stolen is largely irrelevant in that sort of case. It's really around whether the police believe (and can prove) that you actually reported it stolen to avoid any connection to the incident. There are plenty of instances of peoples cars being stolen and used for crimes whilst they're on holiday. They don't report them stolen until they get back and sometimes the police actually tell them before they've found it missing!! Does that somehow make them liable.....no.
His agreement with Sky for TV and broadband is only relevant if he has breached it in some way. Assuming he denies doing the streaming, how has he breached it? As long as he has plausible deniability in it, he's golden.