Watch: US network release preview of Jason Corbett documentary

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.

Molly Martens Corbett, 35, and her father Tom, 68, a retired FBI agent, were convicted of the second-degree murder of 39-year-old Limerick man Jason Corbett at his US home at Panther Creek, North Carolina on August 2, 2015.