I don't know if there's a link here or not, but it is worth noting:

Eddie Ray Routh shot Chris Kyle, his father is Raymond Routh, Trump attempt guy is Ryan Wesley Routh.

Eddie Ray Routh was born on September 30, 1987, in Lancaster, Texas, to Raymond and Jodi Routh. He had wanted to join the Marine Corps since he was thirteen years old, and did so after high school. He was deployed to a base near Baghdad in September 2007, where he worked for six months as a prison guard and repaired weapons. In January 2010, he was sent on a humanitarian mission to Haiti. He was honorably discharged from the Marine Corps in July 2011 after serving for four years.[6]

In late July 2011, Routh was diagnosed by clinicians at the Dallas Veterans Affairs hospital as having post-traumatic stress disorder and was prescribed antipsychotics and antidepressants. He was experiencing auditory hallucinations and paranoia and had threatened suicide. VA clinicians believed Routh's psychotic symptoms were caused by alcohol abuse and offered inpatient treatment. He declined and stopped taking his medication.[6]

https://en.m.wikipedia.org/wiki/Murders_of_Chris_Kyle_and_Chad_Littlefield