Prosecutors said Monday they plan to seek the death penalty against Bryan Kohberger, the suspect accused of murdering four University of Idaho students last year.

In a court filing, Latah County Prosecutor Bill Thompson said that no mitigating circumstances prevent prosecutors from considering all penalties within the state, including the possibility of seeking capital punishment.

“Consequently, considering all evidence currently known to the State, the State is compelled to file this notice of intent to seek the death penalty,” the document said.

Kohberger, 28, a former criminology student at nearby Washington State University, was arrested in late December, weeks after the stabbing deaths of Ethan Chapin, 20; Madison Mogen, 21; Kaylee Goncalves, 21; and Xana Kernodle, 20, whose bodies were found by another roommate on Nov. 13, 2022.

Prosecutors made their intention known about a month after a judge formally entered a “not guilty” plea on Kohberger’s behalf on four counts of first-degree murder and one count of burglary. Under state law, prosecutors typically have 60 days to formally notify Kohberger if they plan to seek the death penalty.

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Idaho recently amended its death penalty law

Idaho has the death penalty and, under a new law passed earlier this year, state officials could seek to have Kohberger executed by either lethal injection or a firing squad if convicted by a jury and sentenced to death. Several supporters say that death sentences currently are ineffective in Idaho because it has been unable to get the drugs needed to carry out lethal injections, the only legal method of capital punishment in Idaho.