Wichita ? BTK killer Dennis Rader abandoned his appeal Monday for his convictions in the deaths of 10 people.

In a brief court filing, his attorney, Carl Maughan, asked the court to dismiss the appeal.

Court papers did not give any reason why the appeal was dropped, and Maughan did not immediately return a call to The Associated Press for comment.

Rader, who called himself BTK for his preferred method to “bind, torture and kill” his victims, pleaded guilty last year to killing 10 people from 1974 to 1991.

His chilling courtroom confession ended a mystery that has haunted this community for decades.

He was sentenced in August 2005 to 10 consecutive life prison terms. Kansas had no death penalty at the time of the murders.