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
Northamptonshire Police have released a terrifying video of an officer being attacked by a man with a knife.
Rolls-Royce has won a £340 million long-term contract with Vietnam Airlines.
Sunny spells and some sharp showers.