Houston

From this article it seems to indicate he exited his house, fired at the fleeing kids striking one in the back, and fired at an unrelated car mistaking it to be involved. Assuming that's true, with all that, even if they were trying to kick in the door and he ran out and started blasting as they retreated, this doesn't meet the legal standard for self defense in Texas (nor any other state in the US for that matter.)

He likely would have had a case were they actively attempting to breach and he fired through the door, but the moment they retreated he became the aggressor and he re-engaged by following them and firing down the street, then shot at an unrelated third party which he's also gonna do time for.

Dude is absolutely cooked.