We have shown in previous films, that Gabrielle Giffords has NO INJURY whatsoever, from her staged "shooting" rampage. Now, there is ample information about the other fake victims of her politically motivated fraud. You will see it in this series.
Zimmerman is the youngest adult crisis actor faking death in Giffords' political fraud event. As such, he had his life ahead of him. Having fulfilled his role as an employee, there was no reason not to get on with it. Known to be an avid athlete up to 2011 (the year of the fake shooting), the path he chose after that should not come as a surprise.
The government run media did very little investigation into the real background of Giffords - nor did any of them seriously investigate the veracity of her "bullet wound" story. Falsified information propagated unchecked through the corrupt media echo chamber. The intention was to deceive; and nearly everyone was deceived.