A Nebraska man who grinned in his mugshot after being accused of shooting four people at a Sonic in November, killing two, has been charged with attacking another inmate behind bars.
Roberto Silva Jr., 23, allegedly stabbed the victim on May 12, then flushed the weapon down the toilet.
“He stabbed me,” Derick Fuller told police, according to KETV.
Fuller was hospitalized with cut wounds to his ear and neck, and required one stitch, according to police.
Witnesses reported hearing screaming and choking, but those were unconfirmed.
Silva has been charged with use of a weapon to commit a felony and second-degree assault, and has been moved to a different facility.
In November, Silva was arrested in connection to a shooting at a Sonic Drive-In restaurant in Bellevue. Two victims, 22-year-old Nathan Pastrana and 28-year-old Ryan Helbert, were declared dead at the second and two others, ages 18 and 25, were hospitalized.
Silva was charged at the time with two counts of first-degree murder, two counts of attempted first-degree murder, four counts of using a firearm to commit a felony and one count of first-degree arson.