More than 37,000 people were killed in motor vehicle crashes in the U.S. in 2017, according to federal data.
CNN's attempts to reach the company have not been successful.
He said the company, Prestige Limousine, "has a lot to answer for".
The crash "sounded like an explosion", said Linda Riley, of nearby Schenectady, who was on a shopping trip with her sisters and had been in their parked auto at the store, which sits near a T-junction of two NY state highways.
Amy Steenberg's husband, Axel, was also killed in the crash.
New York State Police Cpt Richard O'Brien said on Sunday that the investigation was still in its "infancy stages", adding that "several" separate police units were involved, including a "facial identification unit" and a drone team. Jackson was a special education teacher in Amsterdam, said Santabarbara, who represents the part of NY where the crash happened. They had been married only 3 months. "We're just talking layers of tragedy".
"My heart is completely sunken", Karina said. But before Amanda Halse received her sister's reply, she died in the crash.
Relatives of the victims said the SUV-style stretch limo was carrying two newlywed couples and children to a birthday party.
Relatives told CBS News correspondent Tony Dokoupil the victims in the limo were a tight-knit group of family and close friends, most of them, from Amsterdam, a small city near Schoharie. "The investigation is very preliminary it's in its infancy stages", Captain Richard O'Brien of the New York State Police said.
Federal, state and local investigators flooded the tiny town of Schoharie to try to understand what happened.
"My niece was four years older than him, and she said she found the love of her life", she said.
The Apple Barrel manager says that the limo looked like it was traveling at over 60 miles per hour as it careened down a hill, through an intersection and into the parking lot.
"I heard this loud bang".
Her aunty Valerie Abelin echoed Mr Vertucci's words, holding back tears as she described the young mum as a "beautiful, sweet soul".
"We've had three tractor-trailer type vehicles - they come down that hill too fast, they go through our parking lot and they end up in a field behind our business", Kirby said. She had been in another vehicle parked at the store, saw a body on the ground and heard people start screaming.
These kinds of altered vehicles have anxious officials, said Peter Goelz, former managing director of the National Transportation Safety Board.
For starters, the vehicle was never supposed to be a limousine in the first place.
Multiple emergency crews arrived at the scene including the American Red Cross, members of the Schoharie County Sheriff's office and the New York State police.
The crash was so catastrophic, it stunned even veteran safety experts.
A NY state trooper and members of the National Transportation Safety Board view the scene of Saturday's fatal crash in Schoharie, N.Y. "I've been on the board for 12 years and this is one of the biggest losses of life we have seen in a very long time".