fatal gunshot wound. there maybe information in there that will get investigators closer to learning who is responsible for his murder. reporter: ed shaw, a 45 mine grief session to start the classes since the principal s death. student and staff here say they re doing what betts would have wanted them to do. just keep moving forward. you lose him but you have to keep moving forward. reporter: i m rita nissan at heathrow airport in london after five days of of quiet on the runway behind me we could see movement tomorrow. scottish air force base is scheduled to open tomorrow morning and it s possible that air space over the rest of the u.k. including here at heath row could re-open later in the day. european officials say volcanic ash has dispainted enough that several areas of the continent are safe to flyover. it s welcome news for travelers for travelers. reporter: some are still trying to find alternative transportation but tickets for boats and trains are hard t