Here's a link to a story about a local guy who's been charged for murder for shooting a suspected burglar he and his boss were trying to apprehend for a citizen's arrest.
The point I want to make here is this: the line between "good guy" and "bad guy" can change in a blink of an eye. Under California law, you can use lethal force (e.g. a gun) to protect your own life or someone else's life. You can't shoot someone just because he's a thief. Or any other kind of criminal for that matter. Even if he's getting away. ESPECIALLY if he's running away.
I'd hate to see some TW member rotting in jail after confronting and killing some thief for breaking into your Tacoma and stealing your shit. No mistake: Thieves piss me off too. But you can't just kill the guy. Everyone deserves their day in court. It's a key part of what makes ours a just society. And it's not worth throwing your own life away to take revenge on some scumbag.
Here's the essence of the article:
The police report said the maintenance supervisor ... recognized [the victim] driving his truck into the complex... The supervisor told police that [the victim] was a suspect in prior burglary incidents there, and that he phoned [the suspect] to help him make a citizen's arrest...
The supervisor told investigators that the apartment complex... [has] been plagued by burglaries.... He didn't think police would respond in time, so he and Hernandez decided to confront [the victim] and hold him until police arrived. When [the victim] tried to flee, he was allegedly shot by [the suspect]...
Here's the complete article.