Olivia Campbell's mother Charlotte Campbell, center and stepfather Paul Hodgson, foreground, pay tribute to the victims of the explosion outside Manchester Arena, at St Ann's Square in central Manchester, England, Thursday, May 25. Olivia Campbell, 15, was one of 22 killed by a terrorist bomb after an Ariana Grande concert.
Olivia Campbell's mother Charlotte Campbell, center and stepfather Paul Hodgson, foreground, pay tribute to the victims of the explosion outside Manchester Arena, at St Ann's Square in central Manchester, England, Thursday, May 25. Olivia Campbell, 15, was one of 22 killed by a terrorist bomb after an Ariana Grande concert. Rui Vieira AP
Olivia Campbell's mother Charlotte Campbell, center and stepfather Paul Hodgson, foreground, pay tribute to the victims of the explosion outside Manchester Arena, at St Ann's Square in central Manchester, England, Thursday, May 25. Olivia Campbell, 15, was one of 22 killed by a terrorist bomb after an Ariana Grande concert. Rui Vieira AP