The jury foreman in the North Carolina trial of Molly Martens-Corbett and Thomas Martens has said the decision to convict them did not come easily.

Martens-Corbett and her father Thomas Martens were both sentenced to 20-25 years in prison for the second-degree murder of Irish man Jason Corbett.

Mr Corbett, 39, was killed in his home in Wallburg, North Carolina on 2 August 2015.

Get more:

Testimony from doctors at the scene showed Mr Corbett was hit in the head 10 times with a baseball bat and cement brick. His autopsy shows he died from blunt force trauma to the head.

Speaking outside Davidson County Courthouse yesterday, jury foreman Tom Ammland said it was not an easy decision for two of the jurors.

"We were confident in one of the defendants, but we had more (difficulty) with the other," Mr Ammland said.

We need your consent to load this rte-player contentWe use rte-player to manage extra content that can set cookies on your device and collect data about your activity. Please review their details and accept them to load the content.Manage Preferences

Several members of the jury wept as they were asked to individually deliver the verdicts they reached in the case.

Mr Ammland said the jurors left the courthouse Tuesday with a 12-0 vote to convict Thomas Martens, but only had a 10-2 count for Molly Martens-Corbett. He said the two jurors reversed their vote willingly "after having a night to sleep on it."