Isaiah Usen-Satchell, aged 18, was stabbed to death in the Norfolk Park area of Sheffield in the early hours of Wednesday, January 1.
Five arrests have been made over the killing but nobody has yet been charged.
Isaiah, a Leeds Trinity University student was found injured on St Aidan’s Road and taken to hospital but could not be saved.
With his killer still roaming the streets, here are a number of other men from, or with links to Sheffield, who are wanted by the police over other murders.
Anyone with information about any of the cases should call either South Yorkshire, Humberside or Cleveland Police on 101.
1. Stabbing
Ahmed Farrah is wanted over the fatal stabbing of 21-year-old Kavan Brissett, who was attacked off Langsett Walk, Upperthorpe, in August 2018 and died four days later. Farrah is believed to have been injured in the same incident but has gone to ground. Photo: Claire Lewis
2. Attack
Abdi Ali, 29, has been named as a prime suspect in the murder of 47-year-old Shaun Lyall, who was attacked in his home in Cleethorpes in July, 2018. He was born in Somali, moved to Sheffield as a child, and has connections to Pitsmoor and Shirecliffe. Photo: JPI Media
3. Shooting
Ahmed Warsame is wanted over the murder of 22-year-old Jordan Thomas, who was shot dead in Sheffield December 2014. One man was jailed for 36 years but detectives believe others were involved. Photo: Claire Lewis
4. Shooting
Jamal Ali is wanted over the fatal shooting of 22-year-old Jordan Thomas, who was gunned down in a car on Derek Dooley Way, Sheffield, in December 2014. Although one man was jailed, police believe others were involved in the killing. Photo: Claire Lewis