Police say they believe a man who died from a stab wound after an attack in Oswestry on Wednesday evening is 21-year-old Danny Jones, from Chirk, near Wrexham.
He died after arriving at the Royal Shrewsbury Hospital with a single stab wound to the abdomen.
Formal identification has yet to take place.
His family have been informed, but they do not wish to release a tribute at the moment.
West Mercia Police is continuing to question an 18-year-old, arrested in the Llansilin area in Powys, on suspicion of murder.
Officers are searching for the weapon used, believed to be a knife.
The English force is asking anybody with information to call 101.