Facebook picture of Tom Webb. A 22-year-old who was fatally stabbed in Derby city centre has been named as Tom Webb from Alvaston, Derby. See NTI story NTISTAB. Police received reports that a man had been stabbed on St Peter’s Street on Tuesday at 8.30pm. Mr Webb later died and police launched a murder investigation. Officers have now arrested seven people as part of the investigation, three of whom have been released on police bail pending further enquiries. Two youths aged 15 and 16 remain in police custody on suspicion of murder and two men aged 74 and 54 are in custody on suspicion of assisting an offender.