Federal
prosecutors have decided not to pursue a criminal case into
how Heath Ledger obtained the powerful painkillers
that contributed to his overdose death this year, a
law enforcement official said Wednesday.
Prosecutors in
the U.S. attorney's office in Manhattan had been
overseeing a Drug Enforcement Administration probe into
whether the painkillers found in Ledger's system were
obtained illegally. But the prosecutors have bowed out
''because they don't believe there's a viable
target,'' said the official, who spoke on condition of
anonymity because no charges have been filed.
The decision
comes after recent reports that actress Mary-Kate Olsen was
demanding immunity before answering questions about the
startling death of her close friend and his drug use.
Authorities say she was the first person called by a
masseuse who found the 28-year-old Dark Knight
actor's lifeless body in his Manhattan apartment.
The DEA had
obtained a subpoena that could have forced Olsen if she
continued to hold out. But the subpoena, issued in April, is
no longer valid because it was contingent upon
prosecutors pursuing the case, the official said
Wednesday. The official added that the case could still be
revived if evidence of a crime emerges.
Rebekah
Carmichael, a spokeswoman for the U.S. attorney's office,
said it's the office's policy to ''neither confirm nor
deny the existence of an investigation.'' There was no
immediate response to a message left for Olsen's
attorney, Michael C. Miller.
DEA investigators
suspect the painkillers found in Ledger's system,
oxycodone and hydrocodone, were obtained with phony
prescriptions or other illegal means. Oxycodone is
sold as OxyContin and hydrocodone as Vicodin.
Miller insisted
this week that Olsen, a former child star on the sitcom
Full House, had already told the government
she ''does not know the source of the drugs Mr. Ledger
consumed.''
Other potential
witnesses apparently answered questions voluntarily,
including doctors, Ledger's ex-girlfriend Michelle Williams,
and people in his apartment around the time of his
death.
Other drugs taken
by Ledger, including antianxiety medication and
sleeping pills, were prescribed legally by doctors in
California and Texas.
The medical
examiner's office wouldn't say what concentrations of each
drug were found but made clear he was killed by the
combination -- not an excess of any one drug in
particular. It's common for the DEA to investigate an
overdose death with so many different drugs involved, a
DEA spokesman said last month.
The masseuse
discovered Ledger's body on January 22. Police say she spent
nine minutes making three calls to Olsen before dialing 911
for help, then called the actress a fourth time after
paramedics arrived. At some point during the flurry of
frantic calls, Olsen, who was in California, summoned
her personal security guards to the apartment to help,
police said.
Ledger died after
filming The Dark Knight , the latest movie in the Batman series, in
which he has earned rave reviews for playing a
maniacal Joker. The film had taken in more than $400
million domestically as of Monday. (AP)