Helping Victim of Package Theft

I do part time Uber driving and was on my way to pick up a passenger when I witnessed a guy chasing someone on a bike. To sum this video up, the guy on the bike is a porch pirate and had stolen a package from someone's doorstep. The homeowner chased him down then fortunately got the package back. What I wasn't able to capture was the guy knocking the dude off the bike and making him take a nasty fall. Here, I recorded our interaction and I was glad to be able to help the guy out because he seemed winded after the chase.
To the porch pirate in the video: I hope you learned your lesson.