Marion 'suge'' Knight

Although Death Row Records CEO Marion "Suge" Knight has denied any involvement in the incident in which a man struck Dre twice at the Vibe Awards show at Santa Monica airport, triggering a melee in which the attacker was stabbed and seriously injured; police are investigating allegations that Marion "Suge" Knight was involved in an assault on onetime partner Dr. Dre, law enforcement sources said Tuesday.

Andre Young, aka – Dr. Dre, met with officials late Monday at the Santa Monica police station. He demanded that his alleged attacker, Jimmy "James" Johnson, be charged with assault and battery.

Jimmy Johnson was captured on camera punching Dr. Dre at the Vibe awards show on Nov. 16. Johnson was then stabbed, allegedly by a protege of Dr. Dre. That protege a rapper, known as Young Buck(member of the G-Unit), then surrendered days later according to authorities.

Attorney Milton Grimes, who once represented Knight and now represents Johnson, also denied the allegations. "As far as I know, my client has no ties whatsoever to Suge Knight," Grimes said.

Suge Knight had entered the event without an invitation but was there with Petey Pablo who he manages, and ended up sitting just a few feet behind Dr. Dre, who was receiving a lifetime achievement award.

After Suge Knight was released from prison in 2001 after serving time for assault and weapons violations, the conditions of his parole banned him from having any contact with Dr. Dre.

Santa Monica police and agents from the state Department of Corrections have been reviewing video footage and interviewing witnesses regarding Suge Knight's actions before, during and after the event, sources said.

"We are conducting an investigation to determine whether any parole violations took place with Suge Knight at the Vibe awards show," said Alfred Martinez, Los Angeles regional parole administrator for the Corrections Department.

"Mr. Knight has some special conditions attached to his parole, and we are working with the Santa Monica police to evaluate all the circumstances that took place that evening," Martinez said.