SARASOTA, Fla. ( WWSB ) - A DNA expert testified Thursday in the murder trial of Dima Tower, the man accused of stabbing his adoptive parents to death.

Charlene Webster, a senior crime lab analyst for the Florida Department of Law Enforcement in Tampa Bay, took the witness stand on the second day of testimony. Webster specializes in forensic DNA analysis.

Dima Tower murder trial begins with opening statements in Sarasota County

The prosecution questioned Webster about two knives recovered from the crime scene. Webster identified and confirmed the substance on both knives as blood.

Webster concluded the blood on one blade was more than likely a mixture from two different people, at least one male, and highly probable that it was from Dima Tower. The second blade contained blood more t

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