Sounds familiar? Detectives have already questioned 4 men before releasing each again.

This time, a 22 year old man was arrested during a swoop by the murder team last night, although police haven't said where. There doesn't seem to be much more by way of information at this time unfortunately other than that police are still looking into the possible involvement of the LVF.

Tony Blair last month pledged his support to the family to help find Lisa's body, following a meeting with Ulster Unionist Party representatives.

(Previous EU posts on Lisa Dorrian's murder)