Officers believe that the man pictured interacted with the driver of a Tesla car shortly before it was involved in a fatal collision at Great Eastern Street, Hackney, at 17:54hrs on Monday, 14 August.
The Tesla was involved in a collision with a private hire vehicle and a separate bicycle. A 40-year-old male cyclist was treated at the scene before being taken to hospital where he remained for some time in a critical condition. Sadly he died from his injuries on Tuesday, 19 September.