Powell was convicted and given the death penalty, which was overturned in 1972. The case became the subject of a Joseph Wambaugh book in 1973 and 1979 movie in which actor James Woods played Powell.
Powell was denied parole at least 12 times, including most recently in
January 2010
and again in
October 2011
.
"Gregory Powell was a cold-blooded murderer who avoided the death penalty, but he won't escape God's judgement," said Tyler Izen, president of the Los Angeles Police Protective League in a statement. "While Officer Ian Campbell can never be brought back, nor the damage and heartache caused by Powell and Smith be undone, justice was upheld when the parole board denied Powell’s request for compassionate release and ensured he drew his last breath while confined behind prison bars."
On Friday, Los Angeles
city officials honored Officer Campbell
by renaming the intersection at Carlos and Gower streets in Hollywood, which will now be known as Ian Campbell Square.
Related:
Los Angeles Honors Fallen 'Onion Field' Officer
Onion Field Cop Killer: Coming Together for Justice
'Onion Field' Cop Killer Denied Parole