MEXICO CITY -- The men who beat Malcolm Shabazz to death not only punched and kick him but also used a bat or stick during the attack, Mexico City's top prosecutor said Tuesday.

Prosecutor Rodolfo Rios said the two waiters arrested in the case had served the grandson of civil rights activist Malcolm X and a friend at the Palace bar near Plaza Garibaldi.

Shabazz's friend, Miguel Suarez, told investigators that the two had consumed about a dozen beers and then the waiters demanded they pay a tab of 15,000 pesos, or about $1,200, Rios said.

Rios said the attackers realized the severity of the beating when an ambulance arrived. He said the employees ripped out all security cameras inside the bar and immediately closed it.

An autopsy found that Shabazz died of blows to the head, face and torso.

The bar's owner has yet to talk to authorities and Rios said he is considering issuing an arrest warrant. The owner could be charged with covering up a crime, he added.

Suarez said that he and Shabazz were lured to the bar Wednesday night by a young woman who made conversation with Shabazz in English. The Palace bar is on one of Mexico City's busiest avenues.

Shabazz died at a hospital early Thursday.

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  • Malaak And Quibilah Shabazz

    NEW YORK, NY - JUNE 27: Two of the daughters of Betty Shabazz, leave the Islamic Cultural Center in New York, surrounded by the crowd, after the private funeral service 27 June in New York. Shabazz, the widow of black leader Malcolm X, died 23 June of burns suffered when her apartment was set ablaze, allegedly by her grandson Malcolm Shabazz. In (C) is Malaak and (C-L) is Quibilah. (Photo credit should read BOB STRONG/AFP/Getty Images)

  • Daughters Of Betty Shabazz Attend Funeral

    Three of the daughters of Betty Shabazz enter the Islamic Cultural Center in New York for private funeral services 27 June, 1997. Shabazz, the widow of slain black leader Malcolm X, died 23 June of burns suffered when her apartment was set ablaze, allegedly by her grandson Malcolm Shabazz. Left to right, are Malikah, Malaak and Qubilah Shabazz. (Photo credit should read BOB STRONG/AFP/Getty Images)

  • Illya, Attallal And Gamilah Shabazz

    NEW YORK, UNITED STATES: From left: Illya, Attallal and Gamilah, three of the daughters of Betty Shabazz enter the Islamic Cultural Center in New York for private funeral service 27 June 1997. Shabazz, the widow of slain African-American leader Malcom X, died 23 June of burns suffered when her flat was set ablaze, allegedly by her grandson Malcom Shabazz. AFP PHOTO STAN HONDA (Photo credit should read STAN HONDA/AFP/Getty Images)

  • Attallah Shabazz

    MIAMI - DECEMBER 6: Malcolm X's daughter, Attallah, attends the Miami Art Basel Taschen book premiere of Muhammad Ali's book, 'GOAT - Greatest Of All Time' at the Miami Convention Center December 6, 2003 in Miami, Florida. (Photo by Gregorio Binuya/Getty Images)

  • Malaak Shabazz

    Malcolm X's daughter, Malaak Shabazz takes part in the anti-slavery 'May 10 collective' rally named 'the march of the slaves', on May 8, 2011 in the French western city of Nantes. This yearly march is held in Nantes which was France leading slave port, two days before, the day of May 10 commemorating the memory of slavery and its abolition. AFP PHOTO / JEAN-SEBASTIEN EVRARD (Photo credit should read JEAN-SEBASTIEN EVRARD/AFP/Getty Images)

  • Malikah Shabazz

    This Saturday, Feb. 19, 2011 file booking photo provided by the Madison County Sheriff’s Office shows Malikah Shabazz. Shabazz has been sentenced to five years of probation for stealing the identity of an elderly family friend to run up big credit card bills. Prosecutors say she made $55,000 in illegal purchases. (AP Photo/Madison County Sheriff's Office)

  • Attallah Shabazz

    Portrait of Attallah Shabazz, daughter of civil rights figures Dr. Betty Shabazz and Malcolm X, late twentieth century. (Photo by Anthony Barboza/Getty Images)

  • Ilyasah And Malaak Shabazz

    Ilyasah Shabazz and sister, the daughters of Malcolm X and author of the book 'Growing Up X.' (Photo by Steve Grayson/WireImage)

  • Malaak Shabazz

    Malaak Shabazz, African-American late minister Malcolm X's youngest daughter poses part of a press conference on May 5, 2011 in Nantes, western France, three days ahead of a the yearly 'Marche des esclaves' (march of slaves) event. AFP PHOTO FRANK PERRY (Photo credit should read FRANK PERRY/AFP/Getty Images)