Augusta teen charged with killing ex-girlfriend

AUGUSTA - A 16-year-old girl was beaten and stabbed to death because her ex-boyfriend believed she was pregnant and didn&#39;t want her to have the baby, police said. <br> <br> An autopsy on Tuesday at the Georgia crime lab revealed that Stephanie Nicole Burnett was not pregnant, Richmond County sheriff&#39;s Maj. Ken Autry said. Burnett told Matthew John Wiedeman, also 16, that she was pregnant and wanted to keep the baby and marry him, but Wiedeman wanted her to have an abortion, Autry said witnesses told police. <br> <br> Wiedeman and his 17-year-old friend, Raymond Anthony Soto, were charged Monday with luring Burnett out of her house Sunday night and killing her. Autry said the autopsy results did not change investigators&#39; motive theory. <br> <br> ``That was our theory as far as the motive goes, and that&#39;s still our theory,&#39;&#39; Autry said. ``We interviewed people and that&#39;s what developed as a motive, whether (the suspects) were justified in believing that or not.&#39;&#39; <br> <br> Burnett&#39;s brother found her body around 7 a.m. Monday in a parking lot next to their south Augusta house, police said. She had been beaten with a solid-steel dumbbell and stabbed repeatedly. <br> <br> ``I think it&#39;s one of the most gruesome ones I&#39;ve ever seen,&#39;&#39; Deputy Coroner Grover Tuten said. <br> <br> Wiedeman, a high school dropout who lived with his father, was being held Tuesday at the Augusta Regional Youth Detention Center on murder charges. Police said they plan to try him as an adult. <br> <br> Soto, another dropout who temporarily lived with Wiedeman, was in Richmond County jail without bond, charged with murder and possession of a knife during the commission of a crime. <br> <br> Autry said the killing took place Sunday between 10 p.m. and midnight. He said Soto knocked on Burnett&#39;s window and talked her into sneaking outside to talk with Wiedeman. <br> <br> She followed Soto to the parking lot, where Wiedeman attacked her from behind with the barbell, Autry said. Police said they believe Soto used a long-bladed knife during the attack. <br> <br> Police said the murder weapons were found Monday beneath a nearby storm drain. Autry said further testing was needed to determine whether the barbell blows or the stab wounds killed Burnett. <br> <br> Counselors were brought in Monday and Tuesday to Butler High School, where Burnett was a student, Richmond County schools spokesman Justin Martin said. <br> <br> Burnett&#39;s family members said she loved animals and crafts, played soccer and wanted to be a real estate agent. <br> <br> ``It&#39;s not something we ever planned on, especially for a 16-year-old,&#39;&#39; her older sister Rebecca Burnett said. ``We&#39;re thinking more along the lines of buying her a car, not a casket.&#39;&#39;