How a DNA-first caught a serial killer 30 years on
"This was an absolute bombshell because this meant there was a serial killer operating in south Wales in 1973 killing young girls."
"We started to think was it possible that we could use the idea that crime can run in families," said Dr Dark, whose team was continually checking the sample with new profiles on the ever-growing DNA database. "After several hours of going through the process, we were left with about 100 names. They were all exact half matches to the offender's profile. So they were potentially children of the offender," he said.
His dad, however, had been questioned back in 1973 because he fitted the description of the wanted man - and drove a light-coloured Morris 1100.
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