UK police free brother and sister following caravan shooting

A brother and sister have been freed by detectives in the UK investigating a fatal shooting which reportedly occurred after they disturbed a break-in at their secluded caravan.

Reuben and Kathleen Gregory were held on suspicion of murdering Wayne Digby, 48, who was gunned down in Colnbrook, Slough, Berkshire, in the early hours of Monday.