Detectives revisited the scene where Kasipul MP Charles Ong'ondo Were was shot dead along Valley Road just opposite Daystar University.
Sleuths from Homicide and Scenes of Crime Units reconstructed the scene as they tried to piece together clues and evidence that might assist them in nailing Were's killers.
The MP was being driven to his Karen Ngong View Estate when his life was cut short on Wednesday evening.
The second-term MP was in the company of his driver and bodyguard, both of whom escaped unhurt in the drive-by shooting incident that threw security agents in a spin.