Yes this Mantis is the commonly referred to Peacock or Harliquin. Very beautiful and tons of character.
The reason this one has not killed its tankmates is that the raptorial appendages are in regrowth. It is not clear if the claws were removed on purpose, I surely hope not as that would be pure example of mutilation. But I am quite sure this person would not do the same feeding if it were properly armed.
When I set my tank back up, I will include a sectioned off area for a large mantis. Maybe keep him as my cycle beast during my 6 month wait.
Ray