A Los Angeles wig shop owner was fatally stabbed as he attempted to stop a robbery on Oct. 1, Radar has learned. Tommy Lee, 56, who owned a wig shop near the intersection of Wall Street and Olympic Boulevard in downtown Los Angeles, was working around 1:15 p.m. when a pair of 17-year-olds attempted to rob him. “They were looking at a wig. And then all of a sudden, they made a run for it,” landlord Davina Kangavari said. Surveillance and cellphone video showed one of the suspects looking at a blonde wig before both took off. Lee then started chasing them. “Tommy had a record of being tough and …