They did remove a young friend of Caroline who had been living in Lammy Crescent.

BBC: The search for answers begins

If you have a friend that is adding you to groups you do not want to belong to, or they are behaving in a way that bothers you, you can tell them to stop doing it, block them or remove them as a friend and they will no longer EVER have the ability to add you to any group.

FORBES: Mark Zuckerberg Quits NAMBLA, And Facebook Downplays Privacy Criticisms Over Groups

Mr. Kadyrbayev decided to remove the backpack to help his friend, the affidavit said.

WSJ: U.S. Charges Three More in Boston Marathon Case