Besides the fact that you can't find in that scenario. Even if you could,
chance are pretty high that you'll sob over your mother for the rest of your life in jail if you get him, sob for 20 while the killer is out partying or get murked out yourself.
Unless you're a professional killer that is.
And I don't know if dying actually hurts that person, killing his mother or even worse whole family would and then sending him to jail (if you succeed). Him dying, is just him disappearing, not feeling anything at all.
The only way nikkas go to jail is nikkas telling bruh. Nobody telling on you for getting vengence on your momma.