Updated

Michael Jackson used a slew of aliases to score prescription meds, and we know the two names that could unlock the key to gross abuse by Jackson and some prominent doctors.

We've learned Jackson frequently used the names Omar Arnold and Jack London to get powerful drugs, including Demerol. Jackson also used the name of one of his bodyguards, as well as the name of the office manager for one of his doctors.

The DEA, which is joining to assist the LAPD in its investigation of several doctors who prescribed drugs to Jackson, will be hunting down these names and others.

Sources tell us the prescription abuse was so egregious, one doctor would call the pharmacy and say Jackson was coming down to get Demerol. The pharmacy would then fill the prescription, leaving the patient's name blank.

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