But Raila Odinga isn’t zero’s cousin. Raila may be distantly related to the Roman Obama who attended the Patrice Lumumba university in Moscow, and Jaramoghi Oginga Odinga was a teacher at the same school that the son of Obama Onyango attended at Maseno...but blood relatives of zero they are not.
Mainly going off of this.
http://www.telegraph.co.uk/news/worldnews/1574963/Im-Barack-Obamas-cousin-says-Raila-Odinga.html