New documentary series will follow up on Making a Murderer
'Convicting a Murderer,' from filmmaker Shawn Rech, will examine the legal case against Steven Avery
Steven Avery of Making a Murderer denied new trial
His defense team vows to fight on, however
Steven Avery, fiancee to appear on Dr. Phil
Lynn Hartman is set to marry the 'Making a Murderer' subject
