documented gang member accused of stabbing a transient 19 times after the defendant issued a gang challenge to the victim pleaded not guilty Thursday to a murder charge. Josue Hernandez Gutierrez, 20, was ordered held in lieu of $1 million bail in connection with the slaying of 48-year-old Emiliano Cortez of San Diego. Gutierrez was arrested Monday outside a friend's College area home. Deputy District Attorney Kristian Trocha told Judge David Szumowski that Gutierrez and a 14-year-old boy attacked Cortez about 4:45 a.m. Saturday as he was walking in the 3700 block of T Street, about a half-mile from the home where the victim lived with relatives. Gutierrez issued a gang challenge, and for some reason, the victim responded that he was from a rival gang, the prosecutor said. The defendant then stabbed the victim 19 times, including 10 to the back, Trocha said. Cortez died Saturday night, according to the prosecutor. The 14-year-old was arrested Tuesday at a Chula Vista residence....