Should I or shouldn't I?

Notorious (thread creator) doesn't live with her husband. They're divorced. And it may be tough to get support from family members because her relationship with them is strained.

However, I hope that she can at least rely upon some family members who are more positive and supportive.

Notorious.....you need to do as almost everyone on this thread has suggested: GET EVIDENCE in the form of photographs or another witness. And then take that evidence (photographs or witness) and report to the police.
Once you have EVIDENCE....the police can warn these hoodlums about charging them with theft, vandalism, and violence.