Three men have been charged with murder and a fourth with firearms offences in connection with the murder of a biker who was shot dead on the M40 motorway.
Gerry Tobin was shot while travelling home from the festival
Gerry Tobin, 35, of south London, died as he rode home from a biker festival in Warwickshire on 12 August.
Three of the men were arrested on Wednesday morning in Coventry and Nuneaton. The fourth man from Coventry was held on Wednesday evening.
All four are in police custody and are due before Nuneaton magistrates later.
Mr Tobin, who grew up in Canada but had been living in the UK for 10 years, died after leaving the Bulldog Bash bikers' festival, held at Long Marston airfield, near Stratford-upon-Avon.
He had worked as a mechanic at a Harley-Davidson dealership in Mottingham and lived nearby with his girlfriend, Rebecca Smith, 25.