Nicholas Alexander Lee McCray told friends he was heading home to Detroit and is believed to have been en route from North Dakota. He was last heard from on social media Nov. 17.
The incident occurred recently outside a hotel when two men from the Standing Rock tribe were blocked inside a parking lot as several masked men approached their car.
Military veterans are showing their solidarity with demonstrators at Standing Rock.
Native Americans protesting against an oil pipeline being built near their reservation have been ordered to evacuate protest sites by North Dakota's Governor Jack Dalrymple.
The Army Corps issued a letter demanding that the Standing Rock Sioux Tribe vacate the land so that they can move forward with building the controversial oil pipeline.
Trump has decided to pay a $25 million settlement in the lawsuits related to Trump University.
Vester Lee Flanagan allegedly sought out the personnel records of the two people he killed when he was trying to sue the network.
