DALLAS -- It went from peaceful to tense Tuesday night as hundreds of Ferguson protesters shut down I-35 near Dealey Plaza in Dallas.
Seven protesters were arrested when they refused to leave, backing up traffic for miles for at least an hour.
Things started earlier in the evening when more than 200 people peacefully marched to DPD headquarters on Lamar Street, demanding justice for Michael Brown and all victims of police brutality.
After the prayer vigil, part of the group decided to up the ante and shut down the highway.
This is just one of dozens of demonstrations from coast to coast as Americans protest a Missouri grand jury's decision not to indict Ferguson Officer Darren Wilson for shooting and killing Brown, who was unarmed.
During an interview with ABC News, Wilson revealed this shooting was the first time he ever used his weapon in the line of duty. Watch the complete interview.