A university worker stabbed his boss to death and scrawled “bully” across her forehead after she rejected his romantic advances, a court has heard.

David Browning, 52, launched furious attack on Jill Howell stabbing her 15 times before going to a police station, where he told officers: “In a nutshell I have killed my boss.”

Mr Browning, who has admitted manslaughter on the grounds of diminished responsibility, has gone on trial charged with murder.

Hove Crown Court heard Mr Browning, who is married with two grown-up children, had worked at the payroll department in University of Brighton for almost 30 years.

But in 2015 Jill Howell was employed as his manager and the pair had to work closely together to bring in changes in working practice.