Chris Cline, vice president of clinical services at Skyland Trail, a mental health services facility in Atlanta, said it's not clear from Holmes' appearance whether mental illness is a factor.

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This mental image may be the most exclusionary factor of all.

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Mental health issues are identified as being the main contributing factor.

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I've seen thousands of patients over the years, and I can assure you that the most powerful factor in good outcomes for people with serious mental illness is the commitment of family members to keep on trying.

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One of the reasons why the President explicitly talked about engaging not just with lawmakers and law enforcement officials and educators but mental health experts is because that's clearly a factor that needs to be addressed in some of these cases of horrific violence.

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Undoubtedly a major factor for many of these veterans is the prevalence of poor mental health.

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