Greater Manchester Police and Crimestoppers have announced a £5,000 reward for anyone who has information leading to the arrest and conviction of Michael Cope.
He is wanted for the "sustained and vicious" murder of his ex-girlfriend Linzi Ashton in Salford.
Chief Supt Kevin Mulligan said: "£5000 could be a life-changing amount of money so I want people to think long and hard and if you know where Cope is, then coming forward will not only lead to a financial reward but also the reward of helping to give Linzi's family the justice they deserve.
A man has been charged with assisting an offender in the manhunt for Michael Cope, wanted in connection with the murder of Linzi Ashton.
Detectives hunting murder suspect Michael Cope have arrested a man on suspicion of assisting an offender.
Police hunting a murder suspect wanted in connection with the "wicked" killing of a young mother are making door-to-door inquiries.