The last photos of British hiker missing in Swiss Alps

These are the last known videos taken by a British hiker missing in the Swiss Alps - released by his friends and family to try and identify the people he was with.Chemical engineer Aidan Roche, 29, fell out of contact on June 22.An experienced trekker and camper, Aiden was last heard from while in the Grindelwald area on the twelfth day of a two-week trip.