As far as I've been able to find, that's basically the only documented case of a criminal use of a 3d printed gun. His also malfunctioned every shot during the crime.

Legislators point towards the rise of "ghost guns" in crimes, but then you dig into that and they include every criminal who files off the serial number on a stolen gun in the stats, which is by far the more common circumstance along with being much easier, more reliable, and cheaper for a criminal than 3d printing a lower and assembling it.