January 21, 2006: Some letters written by Avery to his ex-wife were threatening
From the FOX6 News Steven Avery archive:
Before Steven Avery was charged with killing Teresa Halbach, before he was let out of prison for doing a crime he did not commit, he was writing letters. FOX6's Renee Banot shows you, those letters were written to Avery's ex-wife in the 1980s and 1990s. Some of them were threatening in nature.