A woman has been charged with the manslaughter of a 72-year-old man.
Bertie Acheson died after he confronted a burglar at his home in Coleraine, Co Derry, in April.
Police said the 23-year-old suspect was detained in the Antrim area.
She will appear at Ballymena Magistrates' Court on Thursday.
It is the second arrest by police in connection with the inquiry.
A man, also from the Antrim area, has previously been interviewed, but was released without charge.
Mr Acheson suffered a heart attack during the confrontation.
Detectives believe it was brought on by stress.
The charity Crimestoppers has offered a £10,000 reward for information which will lead to the arrest and conviction of the offenders.