Using the DNA from a gnat’s eyebrow, genetics expert Gabriella Vargas was the one who named Gilhma as a suspect, according to The Sun.
She created a DNA profile that identified the attacker’s race and ancestry. Vargar’s discovery was uploaded by the investigator to an internet DNA database, enabling her to identify prospective relatives.
The expert eventually constructed the killer’s family tree and located Gilham’s parents. Vargas proposed that one of their three boys might have killed Roxanne.
The police conducted a comprehensive investigation into the family of Gilham’s three boys before coming upon Gilham’s record.
The murderer had a criminal history and had previously served time in jail for unlawful and unusual behavior.
