Cops probe fatal drug overdose tied to 'King of All Pimps' Jason Itzler

(CBS) - Miami police are reportedly investigating the death of a 21-year-old Wisconsin woman who suffered a fatal overdose of a date-rape drug shortly after she left the apartment of the so-called "King of All Pimps" Jason Itzler.

Julia Sumnicht, a University of Wisconsin-LaCrosse student and aspiring model, died in her sleep while on a spring break trip to Miami in March 2010. An autopsy revealed that she had died from an overdose of the date-rape drug GHB, reports The New York Post.

The details of the police and private investigations have come to light as Itzler, 44, is being detained in a Manhattan jail on unrelated charges of promoting prostitution and drug sales.

According to the Post, Sumnicht's family hired private investigators who say aspiring model had met Itzler's roommate, Hungarian photographer Zoltan Prepszent, a year earlier.

The investigators reportedly say text messages, surveillance camera footage and other evidence indicates that Sumnicht and Prepszent spent time together at the SET nightclub before returning to the Flamingo Towers apartment Itzler and Prepszent shared.

Sumnicht then went to an apartment building where she was staying as the guest of another photographer, The Post reports. She was found dead the next day.

A report, obtained by The Post, shows the investigators concluded that she ingested the drug while in the apartment that Prepszent shared with Itzler. This was based on reports of her behavior and the amount of time it takes for the drug to take affect.

Meanwhile, Itzer, who is jailed on unrelated charges, admitted in a jailhouse interview with The Post to taking GHB himself that night after Sumnicht came to his apartment with Prepszent.

"I almost died that night," Izler said of the effect the GHB had on him. "I vomited GHB residue all over."

Miami police declined comment, citing the ongoing investigation.