Getty Images/David Becker A security vehicle blocks an entrance at the Mandalay Bay Resort & Casino on October 4, 2017 in Las Vegas, Nevada. 
- Unsealed court documents reveal a new person of interest in the Las Vegas mass shooting that left 58 people dead in October last year.
- The person was revealed to be 55-year-old ammunition dealer Douglas Haig.
- Haig said he sold ammunition to the gunman, Stephen Paddock.
An ammunition dealer from Arizona has been named a person of interest in Las Vegas mass shooting that left 58 dead in October 2017.
The Las Vegas Review-Journal obtained an un-redacted version of the court documents, which identified the man as Douglas Haig. Haig told the Associated Press that he sold ammunition to gunman Stephen Paddock.
Marilou Danley, Paddock's girlfriend was previously identified as a person of interest. According to the Las Vegas Review-Journal, the newly unsealed court documents indicate Danley - along with Haig - are both under law-enforcement scrutiny.
"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," a document read.
It was not immediately clear what other information, if any, led investigators to focus on Haig.
According to the Associated Press, a law enforcement official said in October that Paddock bought 1,000 rounds of tracer ammunition from a private seller he met at a Phoenix gun show.
Haig said on "CBS This Morning" on Wednesday, that he sold more than 700 rounds of ammunition to Paddock, but had no connection to the man and had no idea what he was planning, the Associated Press reported.