The family of a father and daughter jailed for the murder of their Irish son-in-law and husband claim that key evidence was not put before the jury which convicted them.

A brother and uncle of an American woman jailed for the murder of her Irish husband and father of two are to appear in a documentary to be screened on Saturday by a major US TV network.

Tom and Molly Martens, the father and daughter convicted of killing Irishman Jason Corbett in the US, did not know about a life insurance policy Mr Corbett had until after his death, their family claim.

Molly Martens, the US woman who murdered her husband Jason Corbett, sent his family the bill for the ambulance that came to his house the night she killed the father-of-two.