What begins as a simple command to drop his cane soon turns chaotic fast. >> Right now you're being detained. You understand that? >> Yes, you are. >> Hey. Uh-uh. Uh-uh. >> I'm not being detained, homie. >> Don't do it. Now you're under arrest. >> Don't do it. >> Oh, he's got a knife. He's got a knife. >> In a sudden flash, Little John pulls a knife and advances toward officers. Tasers are deployed twice and he goes down. But moments later, he's back on his feet and running. >> Stay lethal. Stay lethal. >> Shoot me. The suspect has drawn a gun, but it's not. Moments later, they realize it's only a cell phone. The chase continues through the nearby intersection.