[1] Baltas, who served as the club's national president and was once a candidate for Meriden city council, and died in Leominster, Massachusetts on April 22, 2012, aged 70.

When two members of the party, a biker and a female associate, went to a package store to replenish the group's liquor supply, they were involved in an altercation with four men who were attending a company picnic which was being held a short distance from the festival.

In retaliation for the beating suffered by the two, a group of Diablos traveling in three automobiles hunted down and attacked three members of the picnic, Francis M. Golembeski, Richard Melnick, and Thomas Yestramski.

[9] Operation One Percenter resulted in the arrests of 53 members and associates of 18 different biker gangs on various weapons and narcotics charges, during a series of raids in 18 U.S. states, and the seizure of 10 sawed-off shotguns, 10 machine guns, 63 rifles, 100 handguns, 4,500 rounds of ammunition, six silencers, a bomb, four hand grenades, five pounds of dynamite, 15 stolen vehicles, and a stolen computer, as well as large quantities of cocaine, marijuana and PCP.

[10][11][12] John E. Irvin, president of the Diablos' San Fernando Valley chapter, and Thomas E. Pastor, a former Connecticut chapter member, were convicted of possession with intent to distribute methamphetamine, and of using and carrying a firearm during and in relation to a drug trafficking crime after they were found to be in possession of two loaded weapons and eight packages of methamphetamine when they were stopped and searched by Illinois State Police officers while traveling in a Ford Bronco near Collinsville, Illinois on January 5, 1995.

[16] On April 22, 2012, the national leader and founder of the Diablos, Jack Baltas, died at the age of 70, two days after being released from prison after being incarcerated for trafficking drugs.