If a newspaper publishes a false story about a business and someone takes it upon themselves to attack the business, it's partially the newspaper's fault.
If a newspaper publishes a story about a business and someone takes it upon themselves to attack the business, the attacker is at fault, regardless of the veracity of the newspapers claims.
If a newspaper publishes a story about a business and someone takes it upon themselves to attack the business, the attacker is at fault, regardless of the veracity of the newspapers claims.