LOS ANGELES (CBS) — Grand Jury transcripts in the “grim sleeper” serial killer case are revealing new information Thursday.

The LA Times is reporting that a gun used to kill one woman and a photograph of another woman who had been shot were found at Lonnie Franklin Jr.’s house.

Prosecutors say Franklin murdered 10 women and tried to kill an 11th victim over a 20-year period.

Prosecutors have not said yet if they will ask for the death penalty.