A MAN allegedly threatened to murder to ex-partner on Facebook after they split up over his infidelity, a court heard today.
Jonathan Montgomery also claimed he was going to slit the woman's throat in a separate message sent to her sister, prosecutors said.
Details emerged as the 26-year-old appeared before Belfast Magistrates' Court on charges of harassment and threats to kill.
Montgomery, of Glenkyle Park in Newtownabbey, Co Antrim, faces further counts of assault on police, possessing cannabis and criminal damage to a photo frame belonging to the woman.
He was refused bail amid concerns about his mental health and possible re-offending.
Montgomery was arrested at the weekend after his ex-partner alerted the PSNI to messages he allegedly sent by Facebook messenger.
The court heard one of them stated: "I'm gonna murder you."
He had also issued a threat to slit the woman's throat during online contact with her sister.
District Judge Nigel Broderick was told the couple's seven-year relationship ended weeks ago amid claims Montgomery had been unfaithful.
Up to 100 messages were sent to the woman after they split up, according to police.
An investigating officer said Montgomery insisted he would never harm the woman but only wanted to scare her.
Montgomery was also said to have admitted spending up to £200 a week on a cannabis addiction.
A defence solicitor told the court the break-up had a significant impact on his client.
Denying bail, however, Mr Broderick cited the risk of further offences and interference with witnesses.
He remanded Montgomery in custody to appear again by video-link on April 10.
