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Two ageing lovers escaped to Victoria's remote High Country to conduct their secret affair – and have never been seen again.

Janine Vaughan was 31 when she was murdered after accepting a lift on a night out in 2001. Our panel uncovers shocking police tapes and unseen CCTV of Janine's last known moments.

The world was told the Coronavirus leaped from animals to humans at a market in China – but many scientists now fear it leaked from a lab. Experts reveal the new research techniques that put us all at risk.

Toddler Jaidyn Leskie was murdered in 1997 in a case that transfixed Australia. Greg Domaszewicz, who was acquitted of the killing, speaks out for the first time in more than 20 years – and our expert panel re-examines the evidence.

Russian President Vladimir Putin has unleashed chemical warfare on his opponents, poisoning them with deadly toxins. Our panel reveals evidence that marks him as a terrorist who puts whole communities at risk in his quest for power.

Nearly 400 people lost their lives to a design flaw in Boeing's 737 Max that caused two crashes, but the aircraft is back in the skies and Australians could soon be stepping aboard.