Estranged son causing disturbance outside home

As discussed during the dispatch call, caller reports an estranged adult son, who has reportedly been in a prolonged psychotic episode and has a history of being verbally and physically aggressive, is lurking around her home near Whittington Drive. He is believed to have arrived by rideshare and may be in the backyard patio area by the pool. The caller has locked the doors and reports the son does not have keys.