On Thursday, Silvio Raul Illescas, 40, pleaded guilty in Westchester County Court to raping four women between 2011 and 2013.
The first rape took place in Elmsford on Aug. 11, 2011, when Illescas stopped and asked a woman for directions. He pulled the woman into his car, and raped her behind a Home Depot in Yonkers.
Illescas met the three other women through backpage.com, under the guise of having sex for money. All of those assaults were committed at hotels in Greenburgh and Tarrytown, between February and March 2013.
Once inside the hotel room, the victims were raped while Illescas held a knife to their throats.
The Mexican national also pulled a gun on one the victims and stole her cell phones before fleeing, according to court documents.
In a statement, District Attorney Janet DiFiore said:
If not for all four of these women immediately crying out, contacting police and helping with the investigation, this serial rapist, who was becoming increasingly more violent, would still be at large."
Illescas pleaded guilty to two counts of predatory sexual assault, one count of rape, and one count of assault. He is scheduled to be sentenced on on Feb. 25, at which time he could receive 25 years to life in prison.
Despite his illegal status in this country, Illescas was employed as a construction worker at the time of his arrest.