

Around 2000 years ago the Romans held slaves and were crucifying people by the thousands. Amphitheaters hosted gladiator games and executions while huge crowds watched. A quick count on Wikipedia lists more than 40 wars just involving Rome from 200 BC to 200 AD and there were dozens of wars involving China during the same period. There were undoubtedly hundreds if not thousands of additional undocumented battles around the world.
There’s plenty of evidence that 2000 years ago you could not “take it for granted that people loved being alive and loved themselves”, including the fact that a “source” would feel it necessary to issue an order requiring people to love their neighbors.
He seems to deliberately chosen a day when the offices were closed, so perhaps he wasn’t trying to hurt other people. It would have been so much worse if this had been done on a weekday.