Paul John Vasquez has died of an apparent heart attack at 48, it has been reported.
The actor's body was reportedly discovered at his father's home in San Jose, California, on Monday night, according to TMZ.
Vazquez, mostly known for his starring role on Sons of Anarchy, was found unconscious, the publication reports, adding that when paramedics arrived to the scene, the 48-year-old could not be revived.
A cause of death has yet to be determined.
Paul becomes the second actor from the wildly popular show to have passed away in recent months.