Suicide accounts for almost a 3rd of all deaths in US local jails. Things are much better in state prisons - "only" 6% of deaths are from suicide. (Behind AIDS at 9% and illness at 80%). (These are old, but accurate, figures. (http://bjs.ojp.usdoj.gov/content/pub/pdf/shsplj.pdf) )
Aaron meets some of the risk factors for suicide. Male, history of mental illness (and suicidal ideation), significant life event, potential institutionalisation, and being bullied.
Ms Ortiz owed a duty of care to Aaron, if only to ensure he survived long enough to face trial. When they were told that he was suicidal, and had a history of depression, they should have at least obtained medical reports. They did not. They continued to aggressively pursue this young man (for an alleged crime that neither of the victims wanted to be prosecuted) and threatened to remove him from any support that he had by locking him up.
For almost a third of local jail deaths to be from suicide (and almost half of those occurring in the first week of admission) is pretty shocking.