Missouri Governor Jay Nixon spoke at a press conference in St. Louis Tuesday.

Volunteers and workers cleared soot from the site where a police vehicle was set ablaze in Ferguson.

A worker surveyed the scene at a charred building in Ferguson on Tuesday.

Olivia Petitt of St. Louis cried while praying during a gathering in Clayton, Mo., on Tuesday.

An evidence photograph released by the St. Louis County prosecutors office showed Michael Brown's hat after the shooting.

Michael Brown Sr. (center) stood next to the Rev. Al Sharpton at a press conference Tuesday in St. Louis.

School children in Washington, D.C. participated in a protest Tuesday.

A man walked past a burnt-out store in Ferguson, Mo., that was set ablaze following the grand jury decision Monday night.

State troopers blocked a street on Tuesday in Ferguson where protesters and looters rampaged businesses.

Clergy members and other demonstrators blocked an intersection during a protest in Clayton, Mo.

Protesters marched in the streets Tuesday morning in Clayton, Mo., in response to the Ferguson grand jury decision.

Cars that were set on fire were heavily damaged at a lot in Dellword, Mo.

Property manager Terri Willits looked over a gas station she manages that was set on fire in Dellword.