Protestors carried signs bearing the phrase "Black Lives Matter" as they marched through the streets of Madison, Wisconsin on Saturday, a day after a veteran police officer fatally shot an unarmed 19-year-old, NBC News reported. Tony Terrell Robinson Jr., was shot by Madison Police Officer Matt Kenny , on Friday evening. After receiving reports of an assault, Kenny followed Robinson to an apartment, heard a disturbance and forced his way inside, police said. Inside the apartment, Kenny was attacked, and he fired his gun. But some protestors questioned the police account. "The message is that we will not stand for the status quo of injustice," demonstrator Brandi Grayson told NBC station WMTV. "We have a black boy, viciously murdered by MPD, they immediately framed it as if he provoked the murder — and as if he deserved the murder."