Your question is unclear as worded.
Do you mean the person with SZ has beaten their mother or has been beaten by their mother?
If the person has indeed beaten their mother it is possible they will be violent in the future.
The great majority of people with SZ are NOT violent. The risk of violence occurring by someone with SZ increases to 28 percent if that person uses street drugs at the same time he or she has SZ.
A history of violence in someone with SZ is not a good sign.