Rio Grande Valley gang members are now in a war with national "violent hate gangs," such as the Texas Syndicate, Mexican Mafia and the Latin Kings
prosecution witness on Thursday told jurors how confessed police shooter Abraham Mar assaulted a rival gang member in a courthouse holding cell on Monday.A jury in the 357th state District Court is hearing testimony to decide Mar's sentence for the attempted capital murder of Harlingen police Officer Carlos Diaz, who Mar admitted to shooting on June 25.Thursday's testimony also included Diaz's account of the shooting, as well as testimony from Mar's mother, who said her son was beaten by his alcoholic father and had attempted suicide.Mar, who had vomited twice during Wednesday's testimony, vomited again when his mother reached the witness stand. Cameron County sheriff's Lt. Dionicio Cortez, testifying as a gang expert, said he was seated in a break room behind the courtroom Monday when he heard a scuffle in a nearby holding cell, where he found two bailiffs trying to break up a fight. Mar, 19, and a Los Vallucos gang member were beating a member of the rival Tex...