death of a woman in Argyll and Bute are appealing for an English woman who helped at the scene to come forward.We told how the 25-year-old, named locally as Charmaine O'Donnell, died near Helensburgh pier on Friday, April 23.Emergency crews were called to the scene at around 5.15pm but she unfortunately could not be saved.A 28-year-old man has already appeared in court in connection with her death.As the police investigation rages on, officers are keen for more witnesses or anyone with