Two men, aged 25 and 45, both from West Yorkshire, were arrested today on suspicion of assisting an offender.
Detectives are continuing to investigate the murder of the dad, aged 31, from Dunstable, Bedfordshire.
Officers attended Nash Park in Winslow Road, following a report from South Central Ambulance Service shortly after 9am on Tuesday where Mr Fanelli was found dead from head injuries.
Both of the men are currently in police custody.