A Suffolk Superior Court jury Friday found a man guilty of charges he kidnapped and raped two women 13 years ago, according to the district attorney’s office.
Dwayne McNair, 36, along with Anwar Thomas, 35, abducted and sexually assaulted two women within nine days of each other in September 2004, prosecutors said. The case was at one point muddled by initial DNA test results that could not differentiate McNair from his identical twin brother.
On Feb. 5, McNair will face sentencing on eight counts of aggravated rape and two counts of armed robbery, according to the DA’s office.
Suffolk District Attorney Daniel F. Conley said the guilty verdicts took a “dangerous sexual predator off of Boston’s streets.”
“We left no stone unturned in the 13-year history of this case,” Conley said in a statement.
Authorities said McNair and Thomas abducted a woman at gunpoint as she walked alone in the area of Jamaica Plain’s Forest Hills on Sept. 21, 2004. The pair beat the woman with a handgun, and drove her to a remote location, where she was sexually assaulted and robbed. They then drove her to the Franklin Park area, where they released her.
The second victim was abducted, sexually assaulted, and robbed eight days later. McNair and Thomas forced a woman who was walking alone near Parker and Hillside streets in Roxbury into a vehicle, and struck her multiple times in the head with a gun. They then took her to a wooded area, where they sexually assaulted and robbed her.
The victim collected a condom used by one of the men after the assault and later provided it to Boston police.
Boston police crime lab experts tested the condom and other evidence for DNA, eventually matching the genetic profile of McNair, according to the Suffolk DA’s office.
However, the DNA also matched his identical twin brother. At the time, according to the DA, the DNA testing could not differentiate between the two.
Jurors did not hear testimony regarding the results from a newer DNA testing method known as second-generation genome mapping that could differentiate between the two brothers, after a judge granted a motion to exclude such results.
Friday, jurors, after deliberating for about a day, convicted McNair of all charges in connection with the two attacks.
The judge’s ruling that the second-generation genome mapping was not admissible “only strengthened our commitment to bring the case to trial,” said Conley.
“We were deeply gratified that the jury recognized the defendant’s guilt even without that powerful evidence,” he said.
Messages left with McNair’s attorney were not immediately returned Friday night.Danny McDonald can be reached at firstname.lastname@example.org. Follow him on Twitter @Danny__McDonald.