Sources close to the investigation tell CBS station WCBS-TV in New York's Investigative Reporter Scott Weinberger that along with the prescription drugs that were found in the apartment, police also recovered a $20 bill with narcotic residue on it.

Sources add they also found several drug packets containing an unknown substance. WCBS-TV has learned these items were all listed on the official police report from the scene.

To be clear, it's still unknown whether these items belonged to Ledger or whether he even actually ingested them.