How DNA evidence works

With the exception of identical twins, each person has a unique DNA profile. This makes DNA matching a powerful tool for finding and convicting the perpetrator of a crime.
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With the exception of identical twins, each person has a unique DNA profile. This makes DNA matching a powerful tool for finding and convicting the perpetrator of a crime.

For 23 years, Deanna Boyd has covered crime for the Star-Telegram. She digs deep into the stories behind the tragedies and hosts Out of the Cold, a podcast about unsolved murders in North Texas. She is a University of Texas at Austin graduate and has won several journalism awards through the years.