I work with and employ almost entirely legal immigrants. We don't play the hiring illegals for less money game. My experience with these people, especially the ones that are on a probationary residency situation is that they are absolutely mortified of committing a crime and having this affect their ability to become permanent citizens, which it definitely will. This probably accounts for a real but statistically impossible to track reason for why the crime rate among immigrants is so low.
The only point I was trying to make is that if you start out by breaking the law in the first place, a person is more inclined to continue doing so, this is true with everyone in all walks of life, not just immigrants.
That wasn't really the point of what I wrote though and this end of the discussion has been talked about to the point of it just being boring and pointless. The point I was trying to make was that the media is intentionally not talking about this situation because of the race and citizenship status of the perpetrator and had those things been different it would be all over the news 24 hours a day.