Detective Inspector Warren Hines is investigating the murder of Jasbir Singh-Baines.
He was found floating in Dartmouth Park last week.
A post-mortem found that he had died from a cut to this throat.
DI Hines explains what he needs to know about Mr Singh-Baines.
More top news
Most places dry overnight. Cloudier and windier during Sunday.
Cloudy and mild on Sunday, risk patchy rain in west.
Police have released footage of the moment a 12 year-old girl was knocked down by a hit-and-run driver on a zebra crossing in Birmingham.