The January 2017 shooting at the Ft. Lauderdale airport is still being investigated, but what surfaced immediately in seeking a motive for Esteban Santiago's deadly action was his family's observations that he appeared to be fighting a mental health challenge. When he returned from military service in Iraq, he reported hearing voices and his family reported that "his mind was not right."
Totally apart from the issues Mr. Santiago is dealing with, both psychologically and legally, my heart goes out to his family. The family members of a person struggling with mental health issues carry a heavy load, often in isolation and silence, because of the stigma of shame often associated with mental illness.
I am more sensitive to this after recently reading a different kind of book. Sparks of Redemptive Grace - Seeking and Seeing God Amid a Loved One's Mental Illness is a short but powerful book written by the mother of a young man in a battle with bi-polar disorder.