A 26-year-old man is to appear in court charged with the murder of a teenage girl in Northern Ireland and the attempted murder of her sister.
Lauren O'Neill, who only recently celebrated her 18th birthday, was shot and killed in the village of Bellaghy, Co Londonderry, on Saturday.
Her sister, 21-year-old Brenda, is in a critical condition in hospital after the incident at a house in William Court.
The man is to appear at a magistrates court in Londonderry later.
Another man and a woman, both aged 28, were arrested on suspicion of assisting an offender but were released unconditionally on Saturday night by detectives.
Martin McGuinness, Northern Ireland's deputy first minister and Mid-Ulster MP, visited the family after the shooting and said they are devastated.
"This family is clearly deeply shocked and traumatised by what has happened over the weekend," he said.
"I spent some time with the family and offered our support and that of the wider community at this time."
SDLP representative Patsy McGlone said the community has been left stunned.
"There is an overwhelming sense of shock amongst local people that something like this has happened," he said.
"Our thoughts are with them as they try to come to terms with this awful tragedy."