An Oregon woman accused of beating her 4-year-old son to death believed the boy was gay and that was a motive behind the murder, according to the prosecution. Jessica Dutro's son Zachary died in August 2012, days after collapsing at the homeless shelter where his family was living southwest of Portland. Washington County Judge Don Letourneau ruled Wednesday, after jurors were released for the day, that a Facebook message from Dutro to her boyfriend was admissible evidence. On trial: Jessica Dutro (left) is accused of beating her 4-year-old son to death with the help of her boyfriend, Brian Canady (right), because she thought the toddler was gay
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Jessica Dutro, 25, charged with murder in August 2012 death of her son Zachary Dutro-Boggess
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Dutro's boyfriend, Brian Canady, 25, pleaded guilty to manslaughter and assault, and agreed to testify against the mother
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Miss Dutro sent Facebook message to Canady saying that Zachary 'walks and talks like it [gay]', and that the boyfriend would have to 'work on' him
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Dutro's 7-year-old daughter told detectives how her mother and Canady repeatedly beat Zachary until he 'got dead'
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Doctor who examined 4-year-old testified that contents of his ripped bowels leaked into his body for at least two days
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All of Zachary's siblings also showed signs of abuse, exceot for Dutro and Canady's infant son
The message established @placeholder's motive for inflicting a pattern of abuse, prosecutor Megan Johnson said.