He was seen in surveillance videos retrieved from the shops he had visited before the shootings.
"Our investigations are increasingly suggesting that there was no second person involved," said Smithee. "I do not think I can say that with absolute certainty at this point, because we are still following the clues."
Shortly after the attack, the authorities said they were looking for a second gunman, from whom witnesses said that it might have been involved in the shooting. Later, however, Smithee said that several people gave different descriptions of that person.
The Sagittarius identified as Santino William Legan (1
The police killed the shooter within a minute of opening the fire.
Smithee said the authorities found a shotgun in the suspect's car parked northeast of the park. A bag was recovered with additional ammunition from an area of a stream, said the police chief.
Following the shootout, FBI and Sheriff Mineral County members raided a residence in Walker, Nevada, which is believed to be used by the shooter. They found several items, including empty ammunition boxes, a bag of ammunition shells and a bag with pamphlets on weapons. According to court records, the authorities have filed a lawsuit with the Hawthorne Justice Court.