KENOSHA â The case against Mark Jensen remains strong despite a bar against his dead wifeâs letter and messages implicating him appearing at trial, a prosecutor said Friday. Jensen is charged with first-degree intentional homicide for the 1998 death of his wife Julie, the state alleging Jensen poisoned her with antifreeze and then suffocated her at their Pleasant Prairie home. Jensen was convicted in 2008, but his conviction was overturned on appeal. The conviction was reinstated without trial by Kenosha County Circuit Court Judge Chad Kerkman in 2017, then overturned on appeal again. Jensen has maintained his innocence for more than two decades. At the original trial, his attorneys suggested that Julie Jensen committed suicide and framed her husband.