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Two boys have been found guilty of the murder of a 14-year-old girl in Dublin.
Ana Kriégel was found dead in an abandoned house in Lucan in May 2018, where she had been taken by one of the boys.
The jury found the first boy murdered her by causing severe and extensive damage to her head and neck.
The court found the second boy watched Ana being assaulted and covered up afterwards.
The boys, both 13 at the time of the killing, denied the charges.
They gave different accounts of what had happened.
The Central Criminal Court in Dublin heard Ana Kriégel's innocence and longing for friendship made her a vulnerable target to those who wanted to take advantage of her.
During the trial, the court heard Gardaí (Irish police) found a book with a "satanic pledge" and a set of homework club rules at Boy A's home.
Boy B said the book referred to a "satanist cult", which he claimed referred to the homework club.
He said the club had "cult rules" but they were just for fun and were not meant to be serious.
The rules included: "No talking about Jesus or God, only Satan."
'A case that has captured public attention'
By Shane Harrison, BBC News NI Dublin Correspondent
The case has captured much of the public's attention in the Republic of Ireland, reviving memories of two-year-old Jamie Bulger who was murdered on Merseyside by two 10-year-old boys in 1993.
In the aftermath of the Bulger case, there was a debate in Britain about underage crime and its proper punishment.
It also raised questions as to whether the killers had been influenced by events in wider society such as "video nasties" - films containing potentially disturbing content that were not regulated due to a loop-hole in film classification laws in the 1980s.
In the wake of Ana Kriégel's murder, a similar debate could be sparked in the Republic of Ireland, where video nasties have now seemingly been replaced by the use of social medial on mobile phones by teenagers.
Ana was adopted from Russia at the age of two by Irish woman Geraldine Kriégel and her French-born husband, Patric, who lived in Lucan, County Dublin.
On 14 May 2018, she left her house in the early evening thinking she was going to meet a boy she liked.
By the time her concerned mother went looking for her about 45 minutes later, she had already been murdered.
Ana was taken on a 3km journey from her home by Boy B, through St Catherine's Park in Lucan, believing she was going to see one of his friends.
The journey to the abandoned Glenwood House took 30 minutes, where the prosecution said Boy A was already waiting.
The court then heard Boy A attacked and murdered Ana, while Boy B watched.
Former state pathologist, Prof Marie Cassidy, told the court there were about 60 areas of injury to Ana's body.
Her body was found inside the abandoned house in Lucan three days later.