selbbeps

I live in an apartment building ran by an older couple. They are very nice and take good care of the place. The problem is another tenant. She is about 50 years old and does have some mental illness issues. The past few months she has not been taking her meds and has been drinking heavily! Last month she flipped and grabbed her neighbors 6 year old daughter by the hair and tried to drag her in the apartment. She then took a 2x4 and broke car mirrors and threatened that landlords wife. She broke a window in their house. She was arrested and taken to hospital for treatment. When she was discharged from hospital she took a taxi back to apartments. The landlords are afraid of her and don't want her to do anything else to them. I have found her standing outside of my apartment window, shining a light in to my daughters window at night. Last night she got in to someone's car and they ended up calling the police on her again. My question is how can the landlords get her evicted legally? I don't want to move but I don't want my daughter being hurt by this women!