Cheyenne, WY (KGWN) - Jury selection begins Tuesday morning in the Nathaniel Castellanos murder trial.
Castellanos is accused of killing two people and wounding a third in august of 2011. Castellanos is charged with two counts of first degree murders and one count of attempted first degree murder.
Prosecutors allege Castellanos shot and killed Corey Walker and Megan McIntosh and seriously wounded Amber McGuire.
If convicted, he could face the death penalty or life in prison.
The trial is expected to last five or six weeks.