Colorado State Penitentiary II, background, sits vacant inside a larger correctional complex, outside Canon City, in southern Colorado, Thursday, Oct. 15, 2015.  The Aurora theater shooter was housed at this complex after being convicted in August, 2015.

(AP Photo/Brennan Linsley)

The location of a mass murderer is largely a mystery right now.

It's been more than a year since James Holmes was sentenced to life in prison for the July 20, 2012 shootings that killed 12 and injured 70 at an Aurora movie theater. But, when you search for the shooter's name on the state corrections website, it says "no results were found."

Word came out in January that the inmate was transferred out-of-state to an undisclosed prison. State corrections officials say they are not required to inform the victims' families of his whereabouts, citing the move as "temporary."

That is deeply frustrating to the families of his victims.

They flooded CPR with Tweets and e-mails this week when we solicited questions for our upcoming interview with Gov. John Hickenlooper.

Caren Teves sent both. Her son Alex was killed in the 2012 attack.

She spoke to Colorado Matters host Ryan Warner.  Also joining the conversation was 18th Judicial District Attorney George Brauchler, who prosecuted the case.