Jennifer Konopki, now 26, had masterminded a scheme to rob Moir of his $30,000 retirement savings, Mitrick said. Her boyfriend, Brandon Lee, and his cousin, Joseph Holmes, were in charge of torturing Moir.
When the trio left to steal some of his money from ATMs, an unidentified man who was supposed to watch over Moir instead helped him escape.
The man, whom Moir called his "guardian angel," helped him get free and said, "Get out of here - they are going to kill you when they get back."
When Konopki and her accomplices returned to the house in Moir's stolen car, they were intercepted by police.
On Friday, a Common Pleas Court jury convicted Konopki and Holmes of conspiracy, kidnapping, robbery, aggravated assault, and related offenses.
Konopki was found guilty in absentia. She showed up at the beginning of the trial, but then disappeared, Mitrick said.
Holmes, 30, has remained in custody since 2008 and subsequently was sentenced to life in prison for an unrelated murder.
Lee, 30, pleaded guilty last year and is serving a five- to 15-year prison sentence.
Konopki and Holmes are scheduled to be sentenced Feb. 7.
Mitrick said she and Assistant District Attorney Jill Fertel would seek sentences of 25 to 50 years.
The three defendants had plotted to get Konopki bailed out so she could get to Moir, who lives in Wilkes-Barre, and persuade him not to show up for court, Mitrick said.
However, Konopki, of Dallas, Pa., never made contact with Moir, Mitrick said.
The identity of Moir's "guardian angel" remains a mystery.
Contact Robert Moran at 215-854-5983 or bmoran@phillynews.com,
or follow on Twitter @RobertMoran215.