People were gathered in the entrance to a nightclub in Amarillo when a vehicle pulled up at about 2:05 a.m. on Jan. 26 and a gunman exited the vehicle, opening fire into a large crowd with a rifle, the Amarillo Police Department said in a statement.

Two people suspected of being involved in the shooting early Sunday morning were arrested and charged with murder, according to police.

"The motive here is inexcusable. ... Ugly, impulsive violence and something that we should not accept as a community," Chief Birkenfeld said.