The serial killer known as the "Grim Sleeper" was sentenced to death last week as police still try to identify a remaining 33 women 'pinned to a wall in his home'.

The moment of reckoning came for Lonnie Franklin Jr. when a Los Angeles County Superior Court sentenced him to death for the murders of nine women and a teenage girl.

View photos Former garbage collector, Lonnie Franklin Jr, was sentenced to death for the murders of nine women and a teenage girl. Photo: 7 News More

The 63-year-old was linked at trial to 14 slayings, including four women he wasn't charged with killing.

A collection of photos found inside his LA home showed multiple women sleeping, drugged or dead.

The large quantity of these images lead prosecutors to believe Franklin had killed more women, police say as many as 25 more victims.

Earlier this year, the Los Angeles Police Department released 180 of those images to the public to to see if anyone could help identify those women.

View photos Photographs found in the possession of Franklin recovered by the Los Angeles Police Department are seen in this handout image. REUTERS/LAPD More

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