Neither of those are the dictionary though, the definition on Merriam Webster says it's >behavior involving physical force intended to hurt, damage, or kill so

Neither of those are the dictionary though, the definition on Merriam Webster says it's >behavior involving physical force intended to hurt, damage, or kill someone or something. Oxford and dictionary.com have similar definitions Both of your definitions seem to me like cherry picked overly broad legal definitions especially since they are both from legal sites and not dictionaries and one is on a page titled "Youth Violence"