No, it isn't. Stop lying. He's got a history of not making support payments. That's not an "extensive rap sheet."
There are ways to collect from deadbeats that are cost effective and non-violent. They also leave the perpetrator alive to continue to make future payments.
More seriously for murderer Michael T. Slager, who has an extensive history of prior complaints against him, none of Scott's domestic issues were known to Slager when he opened fire, so they cannot be extenuating or mitigating factors in his murderer's defense.
http://www.freerepublic.com/focus/bloggers/3277164/posts?page=68#68
You were saying? Oh, right, you’d vote to convict on murder, because there’s no mitigating factors to lower it to vol. manslaughter re the perp fighting him to get the taser from him, etc. Got it. Glad there are more than one juror if I ever have a bad shoot....