Tristan Kern de Gonzales tells PEOPLE about the final moments he shared with his husband, Jonathan Joss, after the 'King of the Hill' star was fatally shot outside their home in San Antonio, Texas.

While it remains unclear what prompted the fatal shooting of Jonathan Joss, a Native American voice actor best known for his work on the animated television series “King of the Hill,” police say they are looking into whether his sexual orientation played a role in his death.

Jonathan Joss Gonzales, known for his role as John Redcorn on “King of the Hill,” died in a gun-related incident. A neighbor shot and killed the 59-year-old actor on Sunday in what appears to be an escalating feud.