News by Holly Byrnes Premium Content Subscriber only Exclusive: Back in 1971, Keren Rowland was a bright and happy 20-year-old dental nurse, expecting her first child. Now - in shock new claims by a 7News investigation - two leading criminologists assert the Canberra woman was also serial killer Ivan Milat's first victim 50 years ago. Ivan Milat: Buried Secrets reopens Rowland's cold case among others, with forensic anthropologist Dr Xanthe Mallett and criminal psychologist Tim Watson-Munro determining the murdered woman was Milat's first prey - 20 years b...