Abdia Noor Abdi sat in the yard, exhausted after all the questions from the authorities. When she saw the face of her son on the front page of a daily newspaper, she pushed it aside and began to tear up.
He was not poor or marginalized, and did not seem especially angry. He strutted around in $200 suits, the son of a local chief.
But now her son, Abdirahim Abdullahi, has been identified as one of the four gunmen who killed nearly 150 people at a university in eastern Kenya last week, the authorities say.
Once a promising student himself, Mr. Abdullahi was killed along with the other gunmen as Kenyan forces stormed the campus in Garrisa. Police officers later paraded his naked, bullet-riddled body in the back of a pickup truck.
“He was a polite and obedient son,” his mother said. “We are in shock.”