Police have uncovered a number of possible motives for the violent murder of a Polish man found dead in a park.

Marek Pudlowski, 51, was found slumped on a bench in Waterloo Square, Bognor.

Detectives launched a murder investigation after a post mortem showed he died of multiple injuries, including fractured ribs and ruptured liver.

Four men have been arrested on suspicion of murder but there has been insufficient evidence to charge anyone.

An inquest at Chichester was told police inquiries revealed Mr Pudlowski, an agricultural worker, had been travelling to the UK from his home in Poland for the previous three years seeking work in various towns.

He returned to Poland in early 2009 in an attempt to save his failing marriage but he and his wife divorced in May last year and Mr Pudlowski travelled to Bognor the following month.

It is believed he arrived in the seaside town after finding a job in the area on the internet while he was in Poland.

At the time of his death he was out of work and is believed to have developed a drink problem.

He was sharing a room in a house in Bassett Road, a property also occupied by other Polish and Eastern European nationals.

On the afternoon on August 3 last year he was found on a bench by members of the public who alerted the emergency services.

Detective Inspector Phil Mays told the hearing after tracing witnesses and checking CCTV, police believe Mr Pudlowski was assaulted sometime between 9am and 11.30am on the day he died.

Detectives do not know the exact place he was attacked but it is unlikely to have been near the bench, where he was found at about 3.30pm. He was pronounced dead at the scene by paramedics at 4pm.

DI Mays: “Despite receiving intelligence which suggests a number of possible motives for the attack on Marek and the arrest of four men on suspicion of being concerned in the murder, there has been insufficient evidence for criminal charges.

“The case remains under investigation.”

The inquest was told Mr Pudlowski’s son and daughter formally identified their father’s body.

West Sussex coroner Penelope Schofield recorded a verdict that Mr Pudlowski was unlawfully killed.