A man suspected of selling armour-piercing bullets to the Las Vegas gunman who killed 59 people, including three Canadians, at a music festival was charged on Friday with conspiracy to manufacture and sell such ammunition without a license.
However, among the unfired rounds found in Paddock's hotel room were two cartridges which forensic analysis determined were armor-piercing/incendiary ammo that had Haig's fingerprints on them, the complaint states.
"I had no contribution to what Paddock did", he said, adding the amount of ammunition he sold to Paddock was very common.
Haig said in the news conference that Paddock visited him in person to purchase the ammunition, and that "at no time did I see anything suspicious or odd".
Paddock fired thousands of rounds from a hotel window at a country music concert on the Las Vegas strip on October 1, killing 58 and wounding 422 others in the deadliest mass shooting in modern US history.
Haig said he was shocked and sickened when a federal agent informed him of the massacre 11 hours after it unfolded.
He has since closed his ammunition business.
Douglas Haig, 55, told reporters on Friday at a news conference that he has received death threats in the days since his name was accidentally released in police warrants made public by a Nevada judge on Tuesday.
It wasn't immediately clear if the request for the armor piercing ammo struck Haig as unusual or over bearing in quantity?
"Revulsion, sickness, horrified that this man would do something like that", Haig said.
Haig then put the ammunition in the box later found in Paddock's room. Haig said there was no way he could see into Paddock's mine before that sale.
According to the Metropolitan Police Department document, prepared in October, "Until the investigation can rule otherwise, Marilou Danley and Douglas Haig have become persons of interest who may have conspired with Stephen Paddock to commit Murder with a Deadly Weapon".
"I was shocked that my name was the only one that was not redacted", he said.
That's something that Haig said shouldn't have even happened. He went on to say, "He pulled up very well dressed, very well groomed, very polite, respectful".
Haig stated that Paddock informed him he wanted to do a light show with or for his friends in the desert.
Haig's attorney, Marc. J. Victor, said the transaction involving Paddock was legal and he does not expect his client to face charges.
He doesn't sell it anymore, and he's not sure if he ever will again. The product that I sold him had absolutely nothing to do with what he did.
Haig said he was at a loss to explain why Paddock did it. "I'm a vendor, a merchant whose name was released".