No one knows ANYTHING about the shooters mental health... but that's where the MSNBC color commentator went.
So here is a summary of Texas Law.
http://www.ncsl.org/issues-research/justice/possession-of-a-firearm-by-the-mentally-ill.aspx
A person is ineligible for a license to carry a concealed weapon if the person:
(1) has been diagnosed by a licensed physician as suffering from a psychiatric disorder or condition that causes or is likely to cause substantial impairment in judgment, mood, perception, impulse control, or intellectual ability;
(2) suffers from a psychiatric disorder or condition described by Subdivision (1) that: (A) is in remission but is reasonably likely to redevelop at a future time; or (B) requires continuous medical treatment to avoid redevelopment;
(3) has been diagnosed by a licensed physician, determined by a review board or similar authority, or declared by a court to be incompetent to manage the person's own affairs; or
(4) has entered in a criminal proceeding a plea of not guilty by reason of insanity.
The following constitutes evidence that a person has a psychiatric disorder or condition described by section (1), above:
(1) involuntary psychiatric hospitalization;
(2) psychiatric hospitalization;
(3) inpatient or residential substance abuse treatment in the preceding five-year period;
(4) diagnosis in the preceding five-year period by a licensed physician that the person is dependent on alcohol, a controlled substance, or a similar substance; or
(5) diagnosis at any time by a licensed physician that the person suffers or has suffered from a psychiatric disorder or condition consisting of or relating to:
(A) schizophrenia or delusional disorder;
(B) bipolar disorder;
(C) chronic dementia, whether caused by illness, brain defect, or brain injury;
(D) dissociative identity disorder;
(E) intermittent explosive disorder; or
(F) antisocial personality disorder.
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