ALBUQUERQUE, N.M. (AP) – A Colorado inmate suspected of being the “Ether Man” serial rapist has been sentenced to 156 years in prison on rape charges in New Mexico.

Robert Howard Bruce was sentenced Tuesday in an Albuquerque court after pleading guilty to nine charges of rape.

Bruce is serving a 64-year sentence for attempting to blow up a police officer’s home. He is accused of being the Ether Man, who was known for using chemicals to subdue dozens of rape victims in Colorado, New Mexico and Texas.

He has also been linked to rapes in Oklahoma.

It was unclear which attorney in New Mexico was representing Bruce.

He will serve his time in Pueblo, Colo.

(© Copyright 2012 The Associated Press. All Rights Reserved. This material may not be published, broadcast, rewritten or redistributed.)