I have had my LTC suspended 3x. Two were from filed bullshit restraining orders, 1 was an A/B show cause hearing. All 3 times the LTC was returned before leaving the courthouse. So I am speaking from personal experience. From my understanding they suspend your LTC for any restraining order filed, any charge that if convicted could mean revocation, or even a show cause hearing that if charges that could be filed mean revocation. That could be contrary to whatever the law says, but that's what they do.
In all 3 cases someone from the sheriffs dept. came with another armed officer.. Served a letter at my house stating my LTC was being suspended until said court date. They handed it to me and asked me to surrender all my weapons and ammo. I gave them a beat up 870 and told them the rest were sold out of state. They filled out some paperwork with the serial etc handed it to me and left.
So yeah, it doesn't surprise me at all that his LTC was yanked after shooting a guy.. in self defense or not. It sucks.. but I am sure if that is what happened he will have his LTC and firearm back in a couple months.