BANGOR, Maine — The South Dakota inmate charged with setting a homeless man on fire along the Kenduskeag Stream more than five years ago is scheduled to be arraigned Wednesday morning at the Penobscot Judicial Center.

Kenneth John Bruning, 25, of Rapid City, S.D., is charged with intentional or knowing murder in the death of Trevor Sprague, 34, of Lubec.

Bruning waived extradition from South Dakota last month. He was returned to Maine late Friday night and taken to the Penobscot County Jail by two Bangor police detectives.

Bangor lawyer Jeffrey Silverstein was appointed Monday to represent Bruning.

Sprague’s body was found face down and on fire under the Harlow Street Bridge on March 7, 2006. The 34-year-old Lubec native and Bangor transient was known to camp along the Kenduskeag Stream.

Details about the circumstances surrounding Sprague’s death and what led investigators to Bruning have not been released.

Bangor police confirmed last year that Bruning was a member of Bangor’s transient population when Sprague was killed.

A trial date has not been set.