Constance Marten: estranged father of missing woman urges her to go to police

Aristocrat’s daughter and Mark Gordon, a registered sex offender in the US, and their baby have been missing for 12 days

The estranged father of a woman missing with her sex offender partner and their newborn baby has begged her to go to the police.

Constance Marten, Mark Gordon and their child have been missing for 12 days, prompting a police search.