Kincora child sex abuse victim Richard Kerr:

Kincora child sex abuse victim Richard Kerr: I was molested by powerful people at Dolphin Square and Elm Guest House in London.  Mr Kerr, who was a victim of abuse at Kincora Boys' Home in Belfast, has claimed he was also attacked at the Dolphin Square luxury apartment complex and Elm Guest House, both in London.
It is thought to be the first time that the three places have been linked in relation to claims of historic sex abuse by influential Westminster figures.

http://www.belfasttelegraph.co.uk/news/northern-ireland/kincora-child-sex-abuse-victim-richard-kerr-i-was-molested-by-powerful-people-at-dolphin-square-and-elm-guest-house-in-london-31121971.html