Juan Ramon Segundo Meza (born January 25, 1963) is an American serial killer and rapist convicted of the 1986 murder of Vanessa Villa, 11, in Fort Worth, Texas. Segundo was arrested in 2005 after his DNA profile was found to match semen collected from Villa's crime scene. He received the death penalty in 2006. Between 2005 and 2010, Segundo was also linked by DNA to three unsolved murders that occurred in the Fort Worth area in the mid-1990s.