"The authorities in north-west Kenya, where Cheptegei lived and trained, said she was targeted after returning home from church with her two daughters."
it then has something about land and quarelling but its hard to get what happened.
"A report filed by a local administrator alleged the athlete and her ex-partner had been wrangling over a piece of land. Police say an investigation is under way. Cheptegei, from a region just across the border in Uganda, is said to have bought a plot in Trans Nzoia county and built a house to be near Kenya's elite athletics training centres."
it talks of her generosity and position as a bread winner. I wonder if he wanted her to buy it at some inflated price or some crap. I guess ultimately it does not matter what the stupidity was but for some reason im always trying to figure out the thinking from the nutter in the story. Luckily it does not mention injuries to the daughter although apparently he got himself somewhat but not enough to die.