Long Beach Police arrested a 16-year-old boy from the city on Tuesday, June 25, as the fourth suspect in a videotaped gang-related assault near a local high school in May that left a teen hospitalized.

The Long Beach Police Department on Wednesday said in a statement the suspect was taken into custody in Torrance, and was booked on suspicion of assault with a deadly weapon and participating in a felony street gang. The minor was held at the Los Padrinos Juvenile Hall, and his identity was not made public.

Detectives believe he was the last outstanding suspect in the May 15 attack on a 17-year-old male victim near 15th Street and Long Beach Boulevard, just a few blocks from Long Beach Polytechnic High School. The incident was posted to social media, sparking an outcry from parents and residents.

Bryan Blancas, 18, of Long Beach, and two additional juvenile suspects in the beating were arrested May 21. The two minors were booked on suspicion of assault with a deadly weapon, and Blancas later pleaded not guilty to six felonies in connection to the attack including assault and violation of civil rights.