A man found guilty in New Zealand of murdering a 13-year-old girl had previously killed a child in Australia.

Jeremy George McLaughlin, 35, strangled Jade Bayliss in Christchurch in 2011 while the teenager was home sick from school. A jury found him guilty of her murder on Tuesday.

Jeremy George McLaughlin, 35, has been found guilty of murdering Jade Bayliss, 13. He was also convicted of manslaughter over the death of Phillip Vidot, 14, in Perth in 1995. Credit:Kirk Hargreaves

What the jury did not know was that McLaughlin, a New Zealander, had already been convicted in Australia of killing a Perth teenager 16 years earlier.

Phillip Vidot, 14, and his friend Tyron Williams were bashed with a cricket bat, run over by a car and then robbed in November 1995 after leaving home to go shopping.