Sly of the Underworld has shed light on the “breakthrough” which led to the arrest of Frankston serial killer Paul Denyer and his subsequent confession to the murders of three women back in 1993.

It comes as the state government introduced laws to keep Denyer behind bars for life yesterday.

Sly had some chilling details on Denyer’s actions back before his arrest, and also heaped praise on retired Victoria Police superintendent Rod Wilson, who was the one to interview Denyer and who Denyer confessed to.

Press PLAY to hear his insightful interview on the serial killer on 3AW

Image (Denyer): Nine