It's been almost two weeks since the death of 18-year-old Michael Brown, and the protests in Ferguson, Missouri, are still raging.
Attorney General Eric Holder arrived in Ferguson Wednesday to meet with community members.
"We understand the need for an independent investigation, and we hope that the independence and thoroughness of our investigation will bring some measure of calm to the tensions in Ferguson,'' Holder wrote in a column to the people of Ferguson.
Tuesday night, police and National Guard tried to keep a lower profile, but demonstrations soon turned violent again, forcing them to make arrests.
At 2:15 a.m. Wednesday morning, Missouri State Patrol Capt. Ron Johnson said they'd arrested 47 people.
"The agitators, the criminals embedded themselves and hid behind media," Johnson said. "They began throwing bottles. They threw urine on officers and that's what caused officers to take action and again make arrests."
Police didn't use tear gas or smoke bombs.
Meanwhile, local authorities have talked with Darren Wilson, the officer who shot and killed Brown. A grand jury is expected to begin hearing evidence Wednesday to determine whether he will be charged.
A friend of Wilson, who asked to remain anonymous, said he's not a "cold-blooded murderer."
"Darren's a good person and people have immediately labeled him as a cold-blooded murderer and that's not the type of person he is," he said.