CHARLOTTE, N.C. -- Prosecutors are asking for an expedited sentencing for a self-professed gang member who pleaded guilty to ordering the death of two witnesses from behind bars.

Jamell Cureton, pleaded guilty for the double murder of Douglas and Deborah London inside their lake Wylie home in 2014.

The Londons were preparing to testify in a case against three other suspected gang members who are accused of robbing the couple's mattress store when the couple was murdered.

Cureton, prosecutors say, is a member of the Bloods gang and ordered a hit on the Londons from behind bars.

This week, a motion was filed to expedite Cureton's sentencing hearing after a "shank" was found inside Cureton's cell at the Mecklenburg County Jail.

Prosecutors contend that because Cureton is on what's called "special administrative measures", or "SAM", that his current placement at the Mecklenburg County Jail is burdensome on the Jail, the Marshal's Service and the FBI, who each have a role in implementing SAM for an inmate, and that the Bureau of Prisons is better equipped to handle an inmate on SAM restrictions.