Lake City police arrested Domino's manager Sean Everett Davidson, 23, Thursday for the Oct. 20 fire, the Ocala (Fla.) Star-Banner reported. The second manager, Bryan David Sullivan, 22, was arrested Friday after being questioned by police.
Police allege the two confessed to the crime and their motive was that their Domino's location would receive more business if the Papa John's Pizza restaurant was put out of business.
The fire was discovered early Oct. 20, police said. By the time it was brought under control, the establishment had been gutted.
During an interview with police, the suspects allegedly told police they made an ignition device by using a clock, a 9-volt battery, a golf-ball-size amount of gunpowder and a plastic bag.
Davidson and Sullivan told police they dismantled the ignition device later and threw it out of their car while driving away, the newspaper said. Police had yet to recover the device for evidence.