Police said they are also seeking a woman they named as Marilou Danley, described as a companion of the suspect.
New report confirms least 20 people were killed in a shooting outside the Mandalay Bay Resort and Casino after a gunman unloaded hundreds of rounds of ammo on a Las Vegas country music festival on Sunday night.
Read More Deatil: Photo/Video: Mass Shooting In Las Vegas Concert, Leaves 2 Dead And 24 Others Injured