A West Side man with PCP in his system allegedly punched a firefighter who moments later bashed him with a metal bar Sunday morning during a confrontation in Greater Grand Crossing on the South Side. Lamar Andrew Brown, 32, was charged with aggravated battery and aggravated assault of a firefighter, Chicago police said. Brown was also wanted on eight warrants out of Macon County. Brown allegedly assaulted a 32-year-old on-duty firefighter around 11:45 a.m. Sunday in the 7300 block of South Maryland Avenue, police said.According to court records, Brown “knowingly approached victim with clenched fists and struck victim with a closed fist one time about the chest area,’’ according to records. The firefighter declined medical attention at the scene. A police officer on the scene then ordered Brown to step back, but when he didn’t and “continued to swing his arms,’’ and advanced toward the firefighter, the officer deployed her taser. But Brown “continued to advance,” at the firefighter, who in self defense, struck Brown with a metal halligan bar, causing him to fall to the ground, records show. A halligan bar is a 30-inch long, metal tool used by firefighters often to breach buildings or break open doors.Brown, who was taken to St. Bernard Hospital in good condition, tested positive there for PCP, according to records which also said Brown had been reported missing. Brown, of Austin, was scheduled to appear in court Tuesday for a detention hearing. ...read more read less