Image copyright NSW Police Image caption Cheryl's brother, Stephen Grimmer, returned to Fairy Meadow Beach with witnesses 
 
 Originally from the UK, the man would have been 16 in 1970. Mr Grimmer and his two brothers, Paul and Ricki, have been lifted by a police breakthrough on Wednesday, which saw a 63-year-old man arrested over the abduction and murder of their then three-year-old sister. "Mum and dad all their life since Cheryl went missing have been hoping and praying [for] some outcome of it and they don't get to see it now," he said.  Image copyright NSW Police Image caption Cheryl Grimmer disappeared when she was three years old 
 
 A man has been arrested over one of Australia's longest-running mysteries - the suspected murder of a UK-born toddler nearly 50 years ago. The day after her disappearance, police announced they had four theories as to what had happened.
– Nearly 50 years after a 3-year-old girl disappeared from an Australian beach, police may have finally cracked the case. In January 1970, Cheryl Grimmer visited Fairy Meadow beach in Wollongong with her mother and three young brothers, the BBC reports. As the visit wound down, the children went to shower off. Cheryl never returned from the girls' changing room. Her brother, Ricki Grimmer, says she was only gone for a few minutes. "It's something I still live with every day," he says. A massive search for Cheryl proved fruitless, and her body has never been found. Her parents both died without knowing what happened to her, and her brothers didn't want the same thing to happen to them, according to ABC. Then, on Wednesday, police made an arrest. The unnamed 63-year-old suspect was a "person of interest" during the original investigation. Police, who revisited the case last year, say new clues—including three witnesses who saw a teen "loitering" in the area of Cheryl's disappearance—allowed them to confirm some details of the original investigation and make the arrest. The suspect was a 16-year-old student at a reform school in 1970, the Illawarra Mercury reports. Police say he spoke about Cheryl's disappearance at the time. He's now charged with her abduction and murder. "I'm not going to get into the specifics ... but I can say that they are quite horrific," one detective tells the BBC. Cheryl's brother, Stephen Grimmer, tells the Sydney Morning Herald the arrest has been "unreal" and "really emotional." (A 1984 newspaper clip led police to missing sisters.)