The sentiment is there, but i can't help but feel what they are requesting is rather open ended in some respects and rather specific in others.
So its limited to those professions?, is that just when on duty or at all times? and the only bar is that they have killed one of those as a result of crime they have committed, which could include careless driving caused by a moments lapse in concentration, which while sad shouldn't invoke this, the sentence should not be affected by the job title of the unfrotunate.
I have grave mis-givings about this petition, and consider it an emotional resposne rather than a logical one, and needs a bit more work.
I suppose we are back down to that awkward intent question again..... we can't prove beyond resonable doubt that they intended to kill him, but we probably can prove that they didn't really care if they did as long as they got away from him.. but how to make a rule to catch such cases....
.... something along the lines of much longer sentences for manslaughter that occurs as a result of trying to commit another crime would probably work, in this case, the manslaughter was proven, the trying to commit another crime could be easily done so, even if it wasn't done in this case becuase they had bigger charges to get him on.