Shahed Hussain, who owns Prestige Limousine, served as an FBI informant in two terrorism cases after pleading guilty to a federal fraud charge in 2002.
All three of the company's vehicles had violations when they were inspected last month, records show.
Officials say the crash is the worst U.S. road tragedy in almost a decade.
Lawmakers promised to lend their sway in providing the community answers to the questions surrounding Saturday's crash in Schoharie, about 25 miles south of Amsterdam.
Asked Monday about Hussain, the Federal Bureau of Investigation said it would not confirm or deny who is or is not an informant.
Officials said the limousine failed to stop at an intersection Saturday and went careening into a parking lot, where it struck a parked SUV. Typically when SUVs are converted into limos, they are cut in half, stretched and converted.
"I just wanted to say Axel Steenburg I love you more than words can say!"
But officials already saw some red flags, Cuomo said: The driver didn't have the necessary commercial license, and the vehicle failed a state inspection that examined such things as the chassis, suspension and brakes.
"It's a terrible tragedy, and there's no words to describe how we feel", Abeling said.
Still, the group continued southwest on State Route 30.
The limousine failed to stop at the intersection on Saturday.
The crash "sounded like an explosion", said Linda Riley, who was on a shopping trip with her sisters and had been in their parked vehicle at the time at the store. "All of these occurred during business hours and could've killed someone then". The limo's engine compartment has been pushed back in to the front of the passenger compartment, indicating a "high energy impact", Sumwalt said. State police identified them as Brian Hough, 46, of Moravia, Cayuga County, and James Schnurr, 70, of Kerhonkson, Ulster County.
Amy's three sisters were also killed in the crash. "That's very striking", Sumwalt said.
The Schoharie crash was the deadliest USA transportation accident since 2009.
The NTSB, a federal agency, is investigating the crash and will look at the adequacy of regulations for limousines, whose passengers are not required to wear seat belts.
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Driver in deadly limo crash reportedly had prior drug busts
"Saturday, Rich, Axel and other friends and family passed in an unfortunate party bus accident", she wrote . Douglas says the sisters "did the responsible thing getting a limo so they wouldn't have to drive anywhere".
Fiore said: "Our thoughts and prayers are with the victims and their families following this horrific tragedy".
The memorial honored 20 people who died in Saturday's fatal limousine crash in Schoharie, N.Y. "Our lives have been changed forever". Erin McGowan worked as an administrative assistant at St. Mary's Healthcare in Amsterdam. We lost mothers and fathers, sons and daughters, sisters, brothers and friends, and the community will never be the same.
Karina Halse said she's struggling with the loss of her sister, Amanda Halse, who was killed along with her boyfriend.
Many of those in the limousine were related to one another.
And Barbara Douglas isn't just grieving the deaths of her two nieces.
"I had four nieces", Douglas told the news station.
"We wish to express our deepest, heartfelt sympathies to the families and friends of the victims". "Due to the severity of the crash, this process is taking some time".
Amy and Axel Steenburg Wednesday in June and were celebrating Amy's birthday when their driver lost control of the vehicle in upstate NY.
Four sisters - Mary Dyson, Abby Jackson, Allison King and Amy Steenburg - all perished in the crash, state Assemblyman Angelo Santabarbara said.
All 17 passengers were killed.
She did not want to name them publicly but added: "They were wonderful girls".
Their younger brother, Eric Steenberg, who was not on the trip, told the news station it seemed like "a really bad dream".
The crash happened outside an Apple Barrel Country Store & Cafe. "She was creative from the day that she was born". "I know that he always made sure that it was valid and was in order".
Schoharie Town Supervisor Alan Tavenner said Saturday that these efforts may well have been for naught, with the intersection still being highly unsafe, as exhibited by the weekend's tragedy.
The New York grand jury report recommended state lawmakers require stretch limousines that seat nine or more passengers to meet the stricter inspection regulations that apply to buses.