A Green River man charged for first degree murder in the death of a five-year-old boy plead not guilty to the charge Friday afternoon.

Christopher James Nielsen, 26, made the plea during an arraignment in District Court Judge Suzannah Robinson’s court. If convicted, he could face either life in prison or the death penalty.

As of press time, the Sweetwater County Attorney’s Office has not decided if it will seek the death penalty in the case. The office has to decide if the death penalty will be sought by Feb. 10.

During the hearing, Nielsen’s $1 million cash or surety bond was unchan...