CCTV captures full horror of knife attack that left father-of-two dead.

Toe bone DNA research uncovers the sexual relationships of cave-dwellers from Altai foothills in Siberia.

Alleged crime in 1997 part of bid to steal and extort money.

Skulls of ancient adult and child pair placed near kneecaps of grown-up, in bizarre burial puzzling archeologists.

Support for the French people after the brutal killings of innocent people.

Discovery of blood in creature frozen for 43,000 years is seen as major breakthrough by international team.

As the winter cold settles in, this is a sight to warm you up (strictly 18+).

Russian officials claimed little orphan Maxim Kuzmin suffered an appalling death after being adopted to the US. 

Forensic tests underway in America as mother appeals for Russian witnesses, alleging 'foul play' and police 'cover-up’.