Background
Derek David Goplin was convicted by a jury of first-degree intentional homicide while armed with a dangerous weapon for fatally stabbing his mother, Susan Reese, in her Antigo home. Goplin argued at trial that he acted in self-defense and in defense of his five-year-old son, Kent, who was Reese’s ward and was present at the home.
The defense introduced substantial evidence that Kent feared Reese and that she had acted harshly toward him. Goplin’s lawyers, however, did not offer a handwritten note Goplin wrote after the killing or 13 audio clips from a tablet recording in which Reese used vulgar and threatening language toward Kent. After conviction, Goplin sought a new trial, claiming counsel was ineffective for failing to introduce that evidence.
The Court’s Holding
The Wisconsin Court of Appeals affirmed the conviction and the order denying postconviction relief. Assuming without deciding that counsel performed deficiently and that the recordings and note could have been admitted, the court held that Goplin failed to establish prejudice under the ineffective-assistance standard.
The court concluded there was no reasonable probability that the omitted materials would have produced an acquittal or a conviction on a lesser offense. The jury had already heard extensive evidence about Kent’s difficult relationship with Reese and his account that she had a knife and threatened him and Goplin. The recordings added evidence of verbal abuse, but no actual physical violence. The note also could have been viewed as an admission of wrongdoing, and introducing the evidence could have opened the door to rebuttal evidence portraying Reese as a caring guardian. Most importantly, the materials did not undermine the State’s evidence that Goplin used excessive and fatal force, including multiple stab wounds to Reese’s neck, head, stomach, and back.
Key Takeaways
- An ineffective-assistance claim fails without a showing of a reasonable probability that counsel’s alleged error changed the result.
- Evidence cumulative of material already presented to the jury generally provides limited support for a prejudice claim.
- Evidence offered to support self-defense may not affect a verdict where the State’s evidence supports a finding that the defendant used excessive force.
Why It Matters
The decision illustrates that appellate courts assess prejudice in the context of the entire trial record, including the potential downside of omitted evidence. Even assuming an evidentiary omission was unreasonable, a defendant must show more than that the additional evidence could have made the defense more persuasive.
For self-defense cases, the ruling also emphasizes the distinction between evidence suggesting an initial threat and evidence addressing whether the defendant’s eventual use of force was proportionate.