I'm not sure why everybody is jumping on the cops for this, they did what they were supposed to.
1. They get a burglary in progress call.
2. They find the dude inside the house just like the caller said.
3. They tell him why they're there.
4. He claims to live there.
5. Police look at the family pictures and see none of him, don't believe his story.
6. He gets increasingly mad(rightfully so, but still).
7. Cops try to remove him from the house.
8. He's non compliant and gets pepper sprayed.
I hate to break it to you guys, but the police didn't do anything wrong. They were trying to get him out of the house and he wouldn't go. Its pretty standard to get the person out first and figure the story out after because it's the safest way to handle the situation. What are they supposed to do just be like "ok Mr alleged burglar you say you live here. I know you can't prove you live here but have a nice day"?
I get that it's really easy as of late to jump on the anti-cop or racist cop bandwagon but damn. Don't be so quick to judge. Direct your outrage at the neighbors that called when he's lived there for a fucking YEAR.