Alice Gross: Suspect Arnis Zalkalns has murder conviction

Police investigating the disappearance of 14-year-old Alice Gross say they are now treating a Latvian man, Arnis Zalkalns, as a suspect.

Officers say the 41-year-old man, who vanished a week after Alice disappeared, has a conviction for killing his former wife.

In 2009, he was also arrested for indecent assault against a 14-year-old girl in West London.

Tom Symonds reports.