His first entry in parliament in 1992 he was on the platform of his father's party, Ford-Kenya.
BBC: Raila Odinga: Third time lucky in Kenya?
2.
Friday's attack follows violence in the district earlier in the week, between Kanu supporters and supporters of Ford-Kenya.
BBC: Violence at Kenya polls
3.
The parliamentary by-elections are being seen as a key test of power between the Kanu party and the opposition Forum for the Restoration of Democracy (Ford-Kenya).