Jorge Gama-Lobo is the first, and for a while sole, suspect in "Lights, Camera... Homicidio", if only because the cameras were rolling to capture him plunging the knife into his fellow actor.
Shawn, however, upon reviewing the footage notes Jorge's look of shock and becomes convinced that he did not, in fact, know what he was doing - someone else switched the real knife for the prop. By the time Jorge himself is the victim of a near-fatal attack he has bonded with Shawn and Gus so much that they are the only people on his 'friends and family' list for acceptable visitors at the hospital. Kelly is eventually arrested for the spate of attacks, and Jorge presumably slides back in to life on the telenovela.
Jorge is played by Matt Cedeno.