The waiter's colleagues called police after he was shot in the shoulder with a handgun in the Noisy-le-Grand suburb east of Paris on Friday night, the source said. Attempts to revive the 28-year-old failed and he died at the scene.
According to a witness the gunman had lost his temper “as his sandwich wasn't prepared quickly enough”.
With the shooter still on the run Saturday, shocked residents gathered outside the Mistral pizza and sandwich eatery.
Police told AFP a murder investigation has been opened.
The man was killed at the recently opened Mistral pizza and sandwich eatery. Photo: Tiphaine Le Liboux/ AFP
“He was killed for a sandwich?” one asked, unbelievingly.
“It is sad,” said a 29-year-old woman. “It's a quiet restaurant, without any problems. It just opened a few months ago.”
But others noted high crime levels in the area, notably drug-dealing and public drunkenness.