A father and son in California have been handed long prison sentences for their series of attacks on black victims.

Santiago Rios, 48, and his son, Louie, 22, have been sentenced a combined total of just under 30 years in federal prison for their part in multiple attacks on blacks as well as defacing property with racist graffiti.

The father and son were not the only ones involved in attempting to rid Azusa, Calif. of its black population, however, as 49 other members of their Southern California gang were also convicted.

The gang, known as Azusa 13, told recruits that to join the gang they had to attack black people and try to force them out of the city.

Santiago “Chico” Rios was said to be a leader in Azusa 13 and was a “proponent of the racial cleansing of the city of Azusa.” The father also admitted to being involved with “every significant aspect of the gang’s activities.” He was sentenced to 19 years and 7 months in prison after he pleading guilty to a number of charges against him. He was also said to be taking orders from the Mexican Mafia.

His son, Louie “Lil Chico” Rios, who is hearing-impaired and had to use a sign language interpreter during court proceedings, was given a 10-year sentence.