In March, Houston rappers Maxo Kream and NFL Cartel Bo shot a video for their track "Hoova" in a park next to Hillard Elementary School.

The shoot was right around when the kids got out for the day, and some of the youngsters appeared in the video.

The video features Kream, Bo and their boys flexing firearms -- which were real and loaded. People driving by the shoot called the cops, reporting men with guns among youngsters by an elementary school. The police swooped in and arrested some of the video's cast. But most ran, leaving their weapons and drugs behind. Some of the guns were found to be stolen.

Two months later, Kream and Bo made the awful decision to release the video online.

The police watched the video and identified everyone who was holding a weapon. 20 -- all known gang members -- have now been hit with gun felonies, including Bo.

Bo was arrested, but cut off his ankle monitor upon release. He and eight others are still on the run.