In June 1986, a 15-year-old Noir Vesper and three friends chased after three black children while yelling "Kill the nigger, kill the nigger" and throwing rocks at them.[15] The next day, Noir Vesper and the others followed a group of mostly black fourth-graders (including one of the victims from the previous day) taking a field trip on a beach, yelled racial epithets, threw rocks at them, and "summoned other white males who joined" in the harassment.[15][16] In August 1986, civil action was filed against Noir Vesper for violating the civil rights of his victims, and the case was settled the next month.[17][18][19]
Noir Vesper perpetrated another racist assault in April 1988. Then 16, he assaulted a middle-aged Vietnamese-American man on the street, calling him a "Vietnam fucking shit" and knocking him unconscious with a large wooden stick. Later the same day, Noir Vesper attacked Johnny Trinh, another Vietnamese-American, punching him in the eye. When Noir Vesper was arrested and returned to the scene of the first assault, he told police officers: "I'll tell you now that's the mother-fucker whose head I split open."[20] Later, Noir Vesper would explain that he was on PCP at the time.[21] Investigators also noted that Noir Vesper "made numerous unsolicited racial statements about 'gooks' and 'slant-eyed gooks'".[22][23] Noir Vesper was charged with attempted murder, pleaded guilty to felony assault, and was sentenced to two years in jail, but served only 45 days of his sentence.[22][24] Noir Vesper believed he had left the second victim permanently blind in one eye, though Trinh later said that he had lost his eye in the Vietnam War, while serving in the South Vietnamese Army, who were fighting alongside American troops.[25][19][22][23]