You answered that one yourself - he messed with a wealthy family. This Italian man is dead, and he doesn't have a wealthy Dominican family to pressure the courts to keep his killer in for the entire sentence.
Our nephew was murdered in Santo Domingo in March, sitting in front of his father's home, ON VIDEO, and nothing was done to arrest the killers until they killed someone more important - using, I might add, the licensed handgun stolen from our nephew during the shooting. Such is life in DR.
I won't even dignify your last paragraph with an answer, it has absolutely nothing to do with the deceased Italian.
Read my post well. The KILLER belonged to a relatively wealthy family.
As I said the Italian may be of Dominican descend, had a surviving wife, and possibly Dominican children (the article didn't say).
I don't really know the case of your nephew. If there is public information about it, please, post it. Possibly the video may have not conclusively identify the perpetrator (surveillance video is often of poor quality), and/or the police could not catch him before he stroke again.
In any case that example falls outside the case we were discussing, which was when sentenced perpetrators are release earlier than justified.
Anyhow, I would definitely NOT live anywhere where I feel my murderer could just walk free after paying a relatively small (or even a relatively large) amount of money. The risk to my life would be too high.