The brother-in-law of gunman Omar Mateen, who killed 49 people in an Orlando nightclub on June 12, has refused to comment when asked about the incident.
Mustafa Abasin was asked if he knew about the attack in advance by the Daily Mail.
Based on information showing Mateen sold his home in Fort Pierce, Florida, to Abasin for $100 in a document dated April 5, the news source alleged to Abasin that this suggested he knew about the attack prior.
“I will not comment, I will not comment,” Abasin responded.
Abasin refused to comment on all of the Daily Mail's questions, including if he had spoken to the FBI and if he could explain why Mateen sold the home for $100.
In September 2013, Mateen borrowed $76,000 from a bank with two other family members to purchase the property.
No evidence exists linking Abasin to the attack, and he has not been charged with a crime thus far.
Further information about Mateen’s past has come to light. A bartender alleged the 29-year-old stalked her on Facebook several years ago.
“He was one of those guys who wouldn't leave me alone,” Heather LaSalla said on June 17, according to the Orlando Sentinel.
Mateen allegedly sent her numerous messages on the social network, resulting in LaSalla blocking him.
She said she recognized him from his picture immediately after news of the June 12 attack broke.
“It's just weird that he snapped like that,” LaSalla said.
No information has emerged linking Mateen to foreign terrorist groups. However, he pledged allegiance to the Islamic State in a 911 call he made as he was launching his attack.
The FBI interviewed Mateen three times after concerns raised when he made positive comments about terrorists and attended the same mosque as a suicide bomber in Syria, POLITICO reports.
FBI director James Comey says his organization could not have done anything differently that would have stopped Mateen’s attack.
“Part of the problem is that the FBI and intelligence agencies remain very wedded to this flawed concept of radicalization that describes a mythical process that is discernible and identifiable," Michael German, a former undercover FBI agent, said. “It is not. Unfortunately what we know from scientific studies is that individuals come to the decision to engage in terrorism for any number of reasons."