A New Hampshire woman has been released after serving a three-year prison sentence for luring a co-worker to her apartment in 2012 as a sex offering for her domineering boyfriend.
Kathryn ‘Kat’ McDonough then helped him dispose of the co-worker’s body after authorities said he strangled and raped the woman. On Saturday, McDonough was released from the women’s prison in Goffstown at 12.05am, according to corrections spokesman Jeff Lyons.
The now 22-year-old had pleaded guilty in 2013 to lying about the disappearance and death of 19-year-old Elizabeth ‘Lizzi’ Marriott, of Westborough,
She testified against her boyfriend, Seth Mazzaglia, describing their sexual relationship marked by bondage and sadomasochism.
He was convicted of murder, and is currently serving a sentence of life without parole. Marriott, who worked with McDonough at a department store, was killed only weeks after beginning her sophomore year as a marine biology major at the University of New Hampshire in Durham.
Her body has not been recovered.
McDonough first told investigators that Marriott died during rough sex between them using restraints.
After getting immunity from prosecution, she changed her story, saying Mazzaglia killed Marriott after she rejected him.