NOVATO — A San Quentin inmate has pleaded guilty to fatally stabbing another inmate who was serving time for striking and killing a 9-year-old girl with his motorcycle.

Frank Souza entered the plea to first-degree murder with special circumstances on Thursday.

The Marin Independent Journal reports ( that prosecutors agreed not to pursue the death penalty against Souza in exchange for his plea.

Souza was accused of stabbing 44-year-old Edward Schaefer seven times in a prison yard on July 26, 2010. The 33-year-old Souza was serving time on a murder conviction.

Schaefer had just begun serving his sentence after he was convicted of killing Melody Osheroff and maiming her father, Aaron, in 2009 with his motorcycle while intoxicated.

Souza is expected to be sentenced in April to life without the possibility of parole.


Information from: Marin Independent Journal,