Detectives believe the 35-year-old went into the water near Chelsea Bridge in west London on the night of the attack, after walking “with purpose” for hours..
The last sighting of 35-year-old Ezedi was on Chelsea Bridge just before 11.30pm.
He crossed over the bridge and entered Battersea Park, then crossed back over the same bridge minutes later.
The force said he “walked with purpose” before the bridge and then “his behaviour visibly” changed.
