Posted: Monday February 4, 2013 -- 7:54 a.m.

MANITOWOC, Wis. (AP) -- The Manitowoc County brother of a slain photographer says he's confident the convictions of his sister's killers will never be overturned.

Mike Halbach says the appeals process is still ongoing for 50-year-old Steven Avery and 23-year-old Brendan Dassey. But he's expecting the same outcome as past appeals by Avery and his nephew.

An appeals court last week rejected Dassey's request for a new trial. A similar appeal by Avery was rejected last year. The two were convicted in Manitowoc County of first-degree intentional homicide, sexual assault and mutilating a corpse.

The Appleton Post-Crescent (http://post.cr/YOzprJ ) says Dassey's attorneys plan to ask the state Supreme Court to review the case.

Twenty-five-year-old Teresa Halbach was killed Oct. 31, 2005 when she went to the Avery farm to photograph a vehicle for an auto magazine.

Copyright 2013: Associated Press