Crime Man Refuses to Say Why He Dismembered His Boyfriend and Left His Head by the Hollywood Sign as He's Sentenced to 25 to Life Hervey Medellin's head was discovered by a dog walker a month after the slaying By Tara Fowler Published on November 17, 2015 12:05 PM Share Tweet Pin Email Gabriel Campos-Martinez. Photo: Bexar County Sheriff's Office/Reuters/Landov A man who killed and dismembered his live-in boyfriend, dumping his severed head near the Hollywood sign, has been sentenced to 25 years to life in prison. Gabriel Campos-Martinez, 40, was convicted last month of fatally strangling Hervey Medellin, a former Mexicana Airlines clerk and art collector, on Dec. 27, 2011. When asked at his sentencing to explain why he murdered his lover, Campos-Martinez declined to give an answer, according to the Associated Press. Medellin’s head was discovered by a dog walker a month after the slaying. His other body parts were found by authorities much later. The case generated widespread speculation, including theories Medellin’s death was tied to a Mexican drug cartel or even to Luka Magnotta, a Canadian porn actor convicted last December of dismembering a Chinese exchange student and sending some of his body parts to members of the Canadian Parliament. • Want to keep up with the latest crime coverage? Click here to get breaking crime news, ongoing trial coverage and details of intriguing unsolved cases in the True Crime Newsletter. But officials focused their investigation on Campos-Martinez. Los Angeles prosecutor Bobby Grace told PEOPLE in October that Campos-Martinez killed Medellin because he believed he” was puling away from him.” “I think he felt the victim was going to leave him or ask him to move out,” he said. “He was totally dependent on Medellin financially.” The Internet history of one of the couple’s computers showed a search for sausage-making tools and meat-saws a few days before the murder. Then, after the murder, the user accessed an article entitled, “Butchering of the Human Carcass for Human Consumption.” “The article talked, gave directions on how to cut up a human body,” testified Los Angeles Police Department detective Lisa Sanchez-Padilla at the preliminary hearing. “It gave directions on how high to go on the neck, where to cut on the wrist, the ankles, different parts of the body, and how to actually, in reading it, also how to drain it of blood.” Campos-Martinez was arrested last year in Texas.