Sanchez was a machinist and factory worker who worked afternoon and night shifts at the former American Brass Company plant on Military Road in the Kenmore/Buffalo area.

[3] Sanchez was involved in the community and was well-liked by his neighbors, some of whom called him "Uncle Al" due to his charisma and interactions with them.

He normally did not attack random woman and he killed them on a path, not in a Cheektowaga but returned a short few weeks later after reconciling with his wife.

DNA from Sanchez was obtained after police who were members of the Bike Path Task Force acquired it.

They acquired silverware, a glass, and a napkin that Sanchez used while at dinner at a Latin American restaurant, Solé, in Amherst, New York, on January 13, 2007.

The manner in which each was attacked was similar in that they were all strangled with a rope, cord, wire, ligature, or garrote, as well as being beaten, raped, and/or killed.

In 1992, through investigating the death of Yalem, police tied the DNA of Sanchez, who had not been apprehended, to attacks on six other area women, including one in Delaware Park.

On the day that Sanchez confessed to the murders of Yalem, Mazur, and Diver, the Hamburg, New York attack survivor (who desired to remain anonymous) expressed surprise and relief.

Her body was found on the railroad tracks of the CSX rail line in Kenmore, New York, on July 1, 1985, near where Sanchez worked.

Deputy District Attorney Frank A. Sedita III did not ask Sanchez if he killed Herold during questioning prior to his sentencing.

When detectives questioned Wilfredo Sanchez Caraballo, the car's owner, he provided a solid alibi for the rape and the investigation was dropped.

However, some twenty-five years later, Caraballo was interviewed by Amherst's Bike Path Rapist Task Force and admitted that on the day that the car was identified by the victim he wasn't driving it.

On January 15, 2007, a police task force in Erie County, New York, arrested Sanchez and charged him with the murders of Yalem, Mazur, and Diver.

On January 19, 2007, an Erie County grand jury voted to indict Sanchez for the murders of Yalem and Mazur.

LoTempio later said that Sanchez had a troubled childhood, observed and/or had a traumatic life experience when he was 12 years old, and had deep-seated resentment toward women.

He was taken to Millard Fillmore Suburban Hospital in Amherst, New York, where he was pronounced dead on September 22, 2023, aged 65.

[15][16][17] In March 2007, Anthony Capozzi was freed from state prison after serving 22 years for two rapes with a similar modus operandi.

Once police made the realization of Capozzi's innocence, they inquired with the Erie County Medical Center (ECMC) to obtain his DNA sample.