Authorities cleared "Reacher" star Alan Ritchson after a chaotic front yard brawl in Tennessee drew police scrutiny and went viral online. Ritchson threw punches at his Tennessee neighbor as his kids watched from the street in video obtained by TMZ. However, the Brentwood Police Department concluded the 43-year-old actor was acting in self-defense and almost slapped his neighbor with a reckless endangerment charge. "The Brentwood Police Department, in coordination with the Williamson County District Attorney’s Office, has concluded its investigation into the incident involving Alan Ritchson and Ronnie Taylor on March 22, in Brentwood TN," Police Captain Steven Pepin told Fox News Digital. **‘REACHER’ STAR ALAN RITCHSON DROPS CRYPTIC ‘ENEMY’ QUOTE AFTER ALLEGED FRONT YARD BRAWL WITH NEIGHBOR** "After reviewing available evidence, including video footage and witness statements, authorities determined that no criminal charges will be pursued. Mr. Ritchson’s actions were found to be in self-defense," he added.…