The hotel heir violated his parole in June
Conrad Hilton was released from prison on Aug. 1, a source close to the 22-year-old hotel heir confirmed to PEOPLE.
Hilton has been on parole since 2015 and admitted in court on June 6 to using drugs including marijuana, synthetic cannabinoids and cocaine, which was a violation of his parole.
In March 2015, he plead guilty to assault for making threats against both passengers and flight attendants on an international flight from London to Los Angeles in July 2014. According to a criminal report obtained by PEOPLE, witnesses reported that he shouted profanities at crew and passengers, including, “I am going to f—ing kill you!”
Hilton was ordered into a substance abuse treatment center in January for at least 90 days after allegedly failing drug tests and violating his parole.