The so-called Esplanade rapist accused of a string of attacks on women has pleaded guilty and will be sentenced next month, the DA's office announced today.

Alejandro Done, 49, pleaded guilty to two counts of aggravated rape, one count of rape, one count of assault with intent to rape, two counts of kidnapping, and one count of armed robbery, Suffolk District Attorney Daniel F. Conley said.

That is for attacks on three women in and around the Esplanade, the riverside park along the Charles River, in 2006, 2007, and 2010. The DA said a victim in a fourth assault returned to her native country shortly after the assault was not expected to be available for trial. Done changed his plea at what had been scheduled for a status hearing in advance of his July 16 trial date.

Done, already behind bars, faces sentencing on July 18.

“Our team of prosecutors and police detectives labored for more than a decade to reach this point,” Conley said. “The defendant’s admission of guilt is the direct result of countless hours spent in pursuit of a predator, first to identify him and then to build an ironclad case against him. The victims in this case, and all survivors of sexual assault, can take some satisfaction knowing that he’s finally been held accountable.”

In 2015, a DNA profile from one of the assaults matched Done’s DNA profile, which had been uploaded to the FBI’s Combined DNA Index System, or CODIS, in the course of a Middlesex County investigation.

Done is already being held at MCI-Cedar Junction serving a 12- to 15-year prison term after admitting to raping a woman who was waiting for an Uber ride in 2014.

Developing …