Man watched on his phone as married couple were dying, murder trial told kentonline.co.uk - get the latest breaking news, showbiz & celebrity photos, sport news & rumours, viral videos and top stories from kentonline.co.uk Daily Mail and Mail on Sunday newspapers.
An alleged murderer used an app on his phone to watch a married couple dying after allegedly poisoning them with the painkiller fentanyl, a court has heard.