A Michigan woman is accused of setting fire to her ex-husband’s house, killing his mother

A Michigan couple recently broke up when, prosecutors say, Cinamon Charmaine Rigmaiden went to her ex’s home late on Monday, June 3, and poured an accelerant on the front porch.

According to prosecutors, the 31-year-old allegedly set fire to a home in Detroit and fled the scene.

Rigmaiden’s ex was not home, but three other people – including his mother, Tina Dorrough, and a 57-year-old man and a 65-year-old woman – were inside.

Dorrough, 53, died in the fire. The other two people, whose names have not been released, were taken to a hospital for treatment, according to Wayne County prosecutors.

“Since when has the solution been to break up a relationship by setting fire to an occupied house?” – said prosecutor Kym Worthy. “The defendant’s alleged actions in this case are beyond reprehensible.”

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Dorrough was paralyzed on one side of her body, Maria Miller of the prosecutor’s office tells PEOPLE, which made it difficult for Dorrough to get out of the house as it burst into flames.

The next day, Livonia police arrested Rigmaiden, charging her with one count of murder, two counts of assault with intent to murder, three counts of first-degree arson, and one count of third-degree arson.

Rigmaiden was arraigned on Friday, June 7 and jailed. According to the prosecutor’s office, she pleaded not guilty.

In court last week, her defense attorney said Rigmaiden only intended to damage property and didn’t mean to hurt anyone, Click on Detroit reported.

Rigmaiden is scheduled to return to court for a probable cause conference on June 14.