The sadistic ex is believed to have broken into Cheptegei’s home — which she built in Kenya, near the Ugandan border — while she was attending church with her 9 and 11-year-old

Rebecca Cheptegei’s boyfriend doused her with gasoline and set her ablaze this week during a dispute over land, police and her family said. She died Thursday in the latest horrific attack on a female Olympian in Kenya.

A Kenyan hospital says a man accused of dousing gasoline on an Ugandan Olympic athlete, causing her death days later, has succumbed to burns sustained in the attack.