According to Bennight, agents from the FBI's field office in MS contacted him and came to his office to conduct an in-person interview the next morning.
Cruz opened fire with an AR-15 Wednesday at a Florida high school, killing at least 17 people.
The comment was posted to a video uploaded by MS blogger Ben Bennight. BuzzFeed reported that Federal Bureau of Investigation officials would not say whether or not they confirmed the account that left the YouTube comment about being a school shooter belonged to Cruz. The comment on YouTube has since been pulled down.
"I think in today's online world, it is very hard to narrow down who does what without more information", Bennight told CNN's Jake Tapper later Thursday, "and unfortunately, I wasn't able to provide them with much". Reports say Cruz was expelled from the school past year for disciplinary problems.
Classmates, relatives, and neighbors have described Cruz as a troubled "loner" who often talked about guns and flaunted his obsession with weapons on his social media accounts.
But around 4:30 p.m. on Wednesday - about 30 minutes after Cruz was taken into custody by police in Broward County - Special Agent Ryan Furr with the FBI's Miami field office called Bennight and left him a voicemail. "I just wanted to follow up with you on that and ask you a question with something that's come up, if you wouldn't mind giving me a ring". "The FBI conducted database reviews, checks, but was unable to further identify the person who actually made the comments", the offical said in a press conference. "I didn't. I don't", Bennight said.
The FBI special agent in charge of the Miami division, Robert Lasky, confirmed Thursday morning that the bureau received a tip previous year about the YouTube comment.
Cruz's YouTune account was active until Wednesday evening, when it was finally deleted.
How and why that comment ended up on Bennight's Youtube page on September 25, 2017, is still a mystery to the bondsman.
On Wednesday night, Bennight vlogged about the experience on his YouTube channel. "All it was on my channel was a comment".
"They're going to have to get with YouTube about where the comment originated, but I think they already know", Bennight said.