Catherine Goins, 39, pleaded guilty in 2014 attack on mother of three
Credit: AP Photo

brightcove.createExperiences(); A Tennessee woman who faked being pregnant and murdered a new mom so she could steal her baby was sentenced to life in prison on Friday, PEOPLE confirms.

Catherine Goins, 39, pleaded guilty Friday in Catoosa County, Georgia, to the crimes of malice murder, felony murder, armed robbery, aggravated assault, and kidnapping, according to District Attorney Herbert “Buzz” Franklin.

Before the Sept. 19, 2014 murder of Natalia Roberts, 30, Goins was “trolling to steal a baby, ” Franklin said in a statement obtained by PEOPLE.

Goins wore a prosthetic pregnancy belly “to pass as being pregnant” and had posted ads on Craigslist trying to arrange meetings with mothers of infant children under the pretense of giving them baby clothes, Franklin said.

On that date, she lured Roberts into a residence by offering her baby clothes.

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“After the two entered the residence, Goins directed Roberts to go down a narrow stairwell and then shot Roberts in the back of the head with a .380 caliber pistol as she descended, killing Roberts instantly,” the statement says.

Afterward, Goins stole Roberts’s vehicle and briefly fled the residence with the two daughters that Roberts had brought with her – a 3-year-old and a 3-week-old – before she returned and attempted to clean up the crime scene.

Following her arrest, Goins told investigators that she killed Roberts in self-defense because, she said, Roberts was burglarizing the residence.

Authorities have said that Goins hatched her plan to steal another woman’s child after her boyfriend learned she was not pregnant and broke up with her.

Her sentence of life in prison does not include the possibility of parole.