( CNN ) -- Two people accused of killing a man they met through Craigslist pleaded guilty in Pennsylvania . They entered their pleas early Tuesday , according to Trisha Cotner , administrative assistant for the district attorney of Northumberland County District Attorney 's Office . Miranda Barbour , 19 , and her husband , Elytte Barbour , 22 , are charged in the 2013 death of Troy LaFerrara , 42 . He was stabbed and strangled in their car after connecting with the couple through a Craigslist companionship ad , police said . Investigators tracked the couple through phone numbers in LaFerrara 's phone . Police said the couple wanted to kill someone together for the thrill . They had been married for only three weeks at the time of the slaying and had moved from North Carolina to Pennsylvania after tying the knot . Earlier this year , Miranda Barbour told the Daily Item newspaper of Sunbury , Pennsylvania , that she had killed at least 22 people over six years across the country . She stood by that statement in an interview with the same newspaper a week ago . Sunbury Police Chief Chief Steve Mazzeo said in March he had passed along the information to other jurisdictions . `` I 'm not saying I do or do n't believe it , '' he said then . Jailed husband of self-professed serial killer : ' I still love her ' Alaska : No evidence Barbour killed someone here . CNN 's Haimy Assefa and Ralph Ellis contributed to this report .
Miranda Barbour and her husband are charged with murder in Pennsylvania . Police said they met the man through a Craigslist companionship ad . The Barbours were found dead at their home on Saturday morning after police say they shot each other to death inside.