Friends of Russian anti-war singer cast doubt on official version of his death

Vadim Stroykin reported to have killed himself by jumping from a ninth-floor window during visit by security services

No one knows exactly what happened in the final moments of Vadim Stroykin's life.

The 59-year-old Russian singer-songwriter's vibrant career came to a sudden end on 5 February when a team from Russia's security services arrived at his cramped ninth-floor St Petersburg flat at 9am. They were investigating him for what has become one of the gravest offences in today's Russia - donating to the Ukrainian army.