The death of Danner was a tragedy for her and her family, as it was for Barry and his family. But the reality is that police step in only after the mental health system fails. And it frequently fails. According to the NYPD inspector general, there were 157,000 911 calls for emotionally disturbed persons in 2016. A mayoral task force reported that the mentally ill now fill 38% of all city jail cells. The city Department of Health and Mental Hygiene admits 90,000 city residents with serious mental illness received zero treatment in 2015.