Wigan, on the evening of May 14. But things turned sour when Marsh discovered his ex-partner had slept with someone else while they were there.An argument ensued, resulting in Marsh stabbing the victim in the stomach with a Stanley knife.At Bolton Crown Court on Friday, the 44-year-old was jailed for 21 months.Gavin Howie, prosecuting, told the court that Marsh had met with the victim and her friend earlier in the day.They had headed to a friend's house where the group spent the afternoon drinking and socialising.But while they were there, Marsh learned that the victim had sex with another man.An 'emotional' Marsh then produced a knife and threatened to slash her throat.When an argument broke out, the pair were asked to leave the address,.
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