(CNN) Suspected Golden State Killer Joseph James DeAngelo will be tried on multiple murder counts in a single trial in Sacramento, California, prosecutors said Tuesday.

Authorities say DeAngelo, 72, committed a series of killings, rapes and other crimes over 11 years, from 1975 to 1986, in Northern and Southern California. Law enforcement officials nicknamed the perpetrator the Golden State Killer, who was also known as the East Area Rapist and the Original Night Stalker.

Prosecutors in six counties filed an amended felony complaint in Sacramento Superior Court that combined the previous cases against DeAngelo in those counties. Those charges include 13 counts of murder with special circumstances, including murder committed during the course of a burglary and rape, prosecutors said.

The amended complaint also includes 13 new charges of kidnapping to commit robbery, with sentencing enhancements for using a firearm and a knife during those alleged crimes, authorities said.

"We are unified, and we are committed to delivering justice to the victims of the Golden State Killer and their loved ones, who for far too long have had justice elude them," Ventura County District Attorney Gregory Totten told reporters.

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