A High school teacher sued the city of Seattle after a police officer sprayed chemical irritant directly into his face as he left a peaceful rally on Martin Luther King Jr. Day.Jesse Hagopian, who spoke at the event about how black lives matter, was making arrangements by cell phone with his mother to attend his son’s second birthday party when he passed a Seattle police officer screaming at passersby.Video of the Jan. 19 incident shows the officer and some others standing at a police barricade as she orders a small, peaceful crowd – most of whom were walking past the police – to disperse.Hagopian said officers set up a barricade with their bicycles to prevent protesters from marching, and he said some participants walked through the line – but he did not.“Stand back, stand back,” the officer screams as she holds a canister of pepper spray.Suddenly, as Hagopian walks past talking on his cell phone, the officer blasts pepper spray