Alice Adams and Tibor Vass, both 20, were found in staff quarters of the Radisson Edwardian Heathrow Hotel in Harlington, west London. They had died of multiple stab wounds.
Attila Ban, 31, a Hungarian man from Harlington, has been remanded in custody over the murders after appearing in court on Saturday.
The message was posted at 6.23am last Wednesday on Ban's profile page with several friends adding concerned comments to which they received no reply.
The bodies of Miss Adams from Iver Heath, Buckinghamshire and Hungarian national Mr Vass, of Harlington, were discovered in a house at 3.15pm after they failed to arrive for their 7am shift. Read More