The radio itself had been determined to be out of hands of the initial suspects sold off or handed off.
The radio was in the vest that was stolen at time but the main target of the suspect was the weapons and vests.
It at some point got removed.
If it was a pac radio even if they had mdc enabled with the common 9Fxx or 8Fxx etc ID some people seem to have issue or lack of understanding settings as I personally seen at a shop some newer pac radios where comment the tech made was some idiot didn't program these right from Santa fe lacking those features enabled to be used. Even then being a pac radio they'd have to be pretty close to its vicinity to make a stun occur as it goes off the unit repeater system or one nearby.
At most it can hear a units scan list or channel it's parked on if within range of a pac enabled system unit.
I hear various fire, ems and LE itself has been target of increase in theft in regards to equipment in that region more so lately.