After a shift at the local call centre?
“A 24-year-old man was allegedly beaten to death and his friend was severely injured for resisting a robbery bid in South Delhi’s Sangam Vihar on the night of December 20. A CCTV video footage of the incident shows a group of men attacking the victims, thrashing them with large rocks, and dragging them into a nearby drain” source (India dot com) A small amount of cash was taken.
Homo sapien is capable of extreme cruelty and requires only the smallest provocation. Much like a Gorilla the slightest Incongruity will be met with primal reflexes. Civilised man?