A vicious jailhouse assault orchestrated by an associate of the Mexican Mafia has culminated in a guilty verdict, the Justice Department revealed, following a brutal attack that saw the victim barely escaping death with a slashed throat. Robert Amezcua, known on the streets as “Flaco”, 52, from Santa Ana, was implicated as a participator in the savagery that unfolded within the walls of the Theo Lacy Facility in Orange County back in 2019.