Couple 'poisoned' at restaurant
Lakhvinder Cheema, 39, was pronounced dead at London's West Middlesex Hospital after falling ill following a meal at a restaurant with his wife-to-be Gurjeeta Kaur.
Miss Kaur, 21, is seriously ill and being treated at the same hospital with her family by her bedside.
Mr Cheema's former lover, Lakhvir Kaur, is in custody after being arrested by detectives investigating the apparent poisoning.
A second person, a 54-year-old man, is also being held in connection with the inquiry in Windsor, Berkshire, Scotland Yard said.
Doctors suspect the couple consumed a cyanide-type poison but are divided over the exact substance, it is understood.
Further toxicology tests are taking place following a post-mortem examination at Fulham mortuary.
Officials from the Health Protection Agency were brought in by police after Mr Cheema died in the early hours of Wednesday.
They searched his modern semi-detached house in Princes Road, Feltham, west London, for potentially dangerous substances.