MINNEAPOLIS (WTAQ) - Four members of a Native American gang go on trial next month in Minnesota.

So far, 20 members of the so-called Native Mob have pleaded guilty to federal charges, including racketeering and murder.

One member, Shaun Martinez, pleaded guilty to a murder charge Friday. Martinez admitted in his plea agreement that he shot Jeremee Krasey to death in February of last year to keep him from passing information on the federal investigators. 

The gang reportedly conducts illegal activity on reservations in 4 states, including Wisconsin.