IG-72
one of the first five Holowan Mechanicals assassin droids to be activated, IG-72 gained its own independence and become a freelance bounty hunter. The first IG-88 droid had downloaded all its programming into the other four droids, but found IG-72 deficient in subtle ways. IG-72, along with IG-88 and the other IG-series droids, killed twenty-three members of the Holowan Laboratories staff during their escape. Rather than fight amongst themselves, the IG-88 droids and IG-72 agreed to part company after escaping the Holowan labs. Like many of his kind, IG-72 performed his assassination dutied flawlessly until the order to return for memory wipe was received. Then, like many other IG-series droids, IG-72 went rogue. He was hunted by independent and Imperial forces, and went into hiding to conserve power. He re-emerged when Parlan issued the bounty for Adar Tallon, but was unsuccessful in recovering the Alliance tactician. IG-72 again went into hiding, and hasn't been heard from since. It was believed that the droid self-destructed on Tatooine