A motorist on Route 9A in Hawthorne watched a motorcycle traveling south lose control and strike the roadway's guardrail, Mount Pleasant Police Chief Louis Alagno said.
The department, according to Alagno, received a report of the accident via a 911 caller at about 11:25 a.m. on September 21.
The accident occurred in Hawthorne, "about half a mile north of Home Depot," he said.
"The motorcyclist apparently lost control of the vehicle while headed southbound," said Alagno. "There were no other vehicles involved."
According to the witness, 54-year-old Robert Vazquez of Ossining slammed into the guardrail.
He suffered "multiple blunt force injuries to the body," Alagno said, which ultimately resulted in his death.
Leach and Thomas Funeral Home is arranging a memorial gathering for Vasquez Saturday. Details can be found here.
Alagno said authorities do not know what caused him to lose control of the motorcycle, as the witness said he did not appear to be speeding. Vazquez was wearing a helmet and his 2007 Suzuki had "no apparent violations."
"It's hard to explain why he lost control," the Chief stated.
He added the department does not believe any drugs or alcohol were involved in the midday accident, but the Medical Examiner's "standard practice" is to conduct toxicology tests. Those results will not be available for some time.