WATCH: Officials identify Farmington mass shooter in press conference

UPDATE: At least one of the firearms used by Wilson was purchased legally, according to police.

Police also said the shooting appears to be random, but the investigation is ongoing.

UPDATE: Police said the suspect is 18-year-old Beau Wilson, a student at Farmington High School.

According to police, Wilson roamed up and down the street, shooting indiscriminately into cars and houses, using three different weapons, including an "AR-style rifle."

FARMINGTON, New Mexico -- Officials will hold a press conference on the mass shooting that happened Monday in Farmington.