Founding of the Bloods
In 1969, a gang called the Piru Street Boys was founded by Sylvester Scott and Vincent Owens. According to some sources, the Piru Street Boys were initially associated with the Crips,[5] but later had a falling out. However, other sources dispute any alliance, claiming that the Piru Street Boys were victimised by the Crips.[6] Nevertheless, by 1972, the Piru Street Boys formed an alliance with other smaller street gangs such as the Brims, Bishops and Denver Lanes, which also opposed the Crips.[7] This alliance became known as the Bloods, as the members of this alliance called each other "blood".[7]

Over time, more Blood "sets" would form, including the Mob Piru Bloods. According to Reggie Wright Jr., the Mob Piru and Lueders Park Piru were previously one gang, until they split apart.[8]

Death Row Records
Suge Knight, who would co-found Death Row Records, became affiliated with the Mob Piru set at some point[3] and hired many Mob Piru members in Death Row Records.[9] When Tupac Shakur joined Death Row Records in 1995, he also became affiliated with the Mob Piru.[10] Other notable Mob Pirus who were associated with Death Row Records include:

Wardell "Poochie" Fouse, who was implicated in the murder of The Notorious B.I.G. Fouse was shot dead on July 24, 2003.[11]
Jake “Big Jake” Robles, Suge Knight's friend who was a Campanella Park Piru member shot and murdered in Atlanta on September 23, 1995, by Bad Boy records affiliate.
Trevon "Tre" Lane, who was attacked at Lakewood Shopping Mall by a group of Crips, including Orlando Anderson.[12] Several weeks later, on September 7, 1996, Trevon, and several Death Row members including Suge and Tupac beat Anderson at the MGM Grand. Several hours after this beating, Tupac was shot by an unknown gunman and died six days later.
Alton “Buntry” McDonald, who was close friends with Suge Knight. McDonald was shot dead on April 3, 2002.[13]
Aaron “Heron” Palmer, Suge Knight's bodyguard and friend, who was shot and killed in Compton in June 1997.
Henry “Hendog” Smith, who designed the logo for Death Row Records.[14] Smith was shot dead on October 16, 2002.[15]