Following the fatal attack on Ugandan Olympic marathon runner Rebecca Cheptegei in Kenya, the suspected perpetrator has also died, Kenya media reported on Tuesday. According to the police, Cheptegei’s former partner had doused her with petrol and set her on fire during an argument over a piece of land on September 1. The athlete died a few days later of multiple organ failure after suffering 80% burns. The ex-boyfriend was also seriously injured during the attack and has now succumbed to his injuries at Moi Referral Hospital in the western city of Eldoret. He suffered 30% burns and was treated…