Jealousy over unborn baby spurred attack on pregnant woman, cops say 

Christine Devaux was jealous of the unborn child she felt would steal the time and attention of her boyfriend when she attempted to kill a nine-months pregnant woman in Gaithersburg, according to court documents.

Court documents described a horrifying encounter between Devaux and Lynae Mattson, 30, who is married to the son of the man Devaux lives with. After a court hearing Monday, Devaux, 38, is being held without bond on charges of attempted murder and other crimes.

Mattson arrived home early from work Friday and found two white trash bags laid out on her kitchen floor and 50 feet of cord on a nearby countertop, according to the documents.

She saw Devaux hovering by the back entrance of her home wearing one of her sweatshirts, cloth gloves and her hair tucked inside a surgical cap.

Devaux attacked Mattson with a taser, leaving the pregnant woman "incapacitated" and laying on the floor, documents said.

Devaux had in her car a .22 Savage Mark II long rifle, a box of hollow-point bullets and a Crosman BB gun. Police later discovered Devaux had gained access to the house with a copied key.

For the next 30 minutes, Devaux "was violently hitting and beating" Mattson and tasered her repeatedly, according to prosecutor John Maloney. Mattson "believed that Christine Devaux was there to kill her and her unborn child," documents said.

Suffering severe injuries, Mattson managed to make a run for the front door, but her assailant stopped her.

"I never wanted it to come to this," Devaux told Mattson, a contractor with the National Cancer Institute.

Devaux said Mattson and the unborn child were "keeping her away" from her boyfriend, Bruce Mattson, 61 — who is the father of Mattson's husband, according to documents.

Lynae Mattson grabbed Devaux's hair and broke free, then ran to a neighbor's house to call police.

She was taken to the hospital with scratches on both arms, redness on her chest, bruises and "severe pain ... in her womb."

The attack sent her into labor, but doctors were able to stall the birth. Police confirmed the unborn baby was unharmed.

Following the assault, Devaux deposited the rifles and ammunition at the Monrovia residence she shares with Bruce Mattson and fled to a Frederick motel with her bags packed, police said.

She has been charged with attempted first-degree murder, first-degree assault, first-degree burglary, second-degree assault, carrying a dangerous weapon and false imprisonment by Montgomery County police.

Devaux is a former employee of the National Institute of Standards and Technology, where Bruce Mattson is the acting associate director of the Technology Services Laboratory.

A District Court judge denied her request for bail and set a July 2 court date.

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Hayley Peterson

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