MONROE — A man pleaded guilty to two counts of murder and was sentenced to 36 years in prison.

“We’re very satisfied with the outcome,” District Attorney John Snyder said.

Ubaldo Trejo Martinez, 19, formerly of 886 Sunset Drive in Monroe, was charged with two counts of first-degree murder in late 2007. He pleaded to two counts of second-degree murder and one count of kidnapping. Three others still have pending charges in the killing, but Snyder would not say if the plea deal came with stipulations that Martinez testify.

Martinez was charged in the Dec. 1, 2007, killing of Maria Elvira Celedon and her boyfriend Carlos Armando Arteaga DelAngel, who were killed in their home at 5703 Secrest Short Cut Road.

According to court files, when police arrived at the scene they found DelAngel’s sister, Maricela Arteaga DelAngel, who was with the 6-year-old son and 4-year-old daughter of the couple who were killed. Maricela DelAngel told police she hid with the children in the bedroom until police came in the house.

She later told police that she was awakened at about 3 a.m. by the sound of someone trying to break in. When she stepped out of her room, she said she was immediately confronted by a Hispanic man who made her lie on the floor in the bathroom. She said she heard gunshots and the shooters leave. When she got up, she said, she found that her brother and his girlfriend were dead. She said she was about to call 911 when she heard police radios outside the house and went to find the children.

Autopsies showed that Carlos DelAngel was shot six times and Celedon was shot nine times. Police found $47,000 in cash and $80,000 in cocaine at the house. After an investigation, Martinez and four others were arrested in connection with the killings.