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Medical examiner explains cause of death in New Year's Eve murder case

Trial could last several more weeks

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SAN ANTONIO – In the continuing trial of a man accused of strangling his ex-girlfriend after 2008 New Year's Eve party, the medical examiner testified just how easy it is to strangle someone.

"Cutting off supply to the front of the brain can result in the lack of appropriate blood flow to the brain. In that kind of case, it takes 13 to 15 seconds to lose consciousness," Dr. Elizabeth Peacock testified in front of jury Thursday afternoon. She added that it takes about three minutes to actually kill someone by strangulation.

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Jon Thomas Ford, 43, is charged with the death of Dana Clair Edwards, 32, after her body was found in her Alamo Heights apartment back in January 2009.

Ford was arrested after surveillance video showed a car similar to his leaving Edwards' apartment.

Previous testimony during the trial shows much of the prosecution's case rests on phone records showing Ford and Edwards had contact the night of the murder, after the each left the party separately.

A friend of the couple testified that their break-up was amicable.

The trial is expected to last a couple more weeks.