Dr. Eileen Ryan spent 18 and a half hours interviewing Tanner Horner. She diagnosed him with 10 conditions. She built the architecture of the broken brain defense across two days of testimony. But she also took 140 pages of notes, and her formal report was 38 pages. The prosecution got those notes admitted as State’s Exhibit 309, tabbed the pages, and started asking why specific details never made it into the document the jury was supposed to rely on. Watch how the prosecutor uses Dr. Ryan’s own words against her. Every time she says the report contained what was “relevant to diagnosis,” the prosecution pulls another detail from the notes that tells a different story than the one her report told. The gap between what she disclosed and what she omitted becomes the story of this cross-examination.

— WATCH WITH JUSTICE 3:12 to 10:24 – The prosecutor attacks the foundation. How much of Dr. Ryan’s report came directly from what Horner told her? She pushes back with collateral sources and records. He simplifies: if your subject lies to you, how can you trust the diagnosis? 27:27 to 31:35 – The notes tell a different story. Dr. Ryan’s report said Horner left Outback because he was “overwhelmed by the dishes piling up.” Her notes say he told his boss to F off and walked out. Then the prosecutor moves to the suicide attempts and the hospital records Dr. Ryan reviewed but left out of her report. 32:38 to 39:03 – The problem-solving demolition. The prosecutor reads Dr. Ryan’s own words back to her, “precarious ability to solve problems,” then walks through what Horner actually did. Covered the camera. Told a seven-year-old not to scream. Drove 20 minutes to a secluded location. Disposed of the body. Manipulated a truck stop clerk into free cleaning supplies within 10 minutes of throwing her in the water. Kept his crime scene for another day. At every step: “He didn’t have any problem-solving issues with that, did he?” 1:19:51 to 1:23:31 – The first disclosure. Dr. Ryan reads from her notes what Horner told her he did to Athena. He tried to break her neck. He choked her. She was still breathing. He did another line of cocaine. Then he beat her with his fists and kicked her. This is the first time these details have surfaced in this trial. It was in the notes, not the report. 1:34:07 to 1:39:11 – The prosecutor asks: if you assessed him the day before the murder, you would have said low risk. She agrees. Then the notes reveal Horner compared his situation to “the movie American Satan,” wondering if he made a deal with the devil for fame, money, and power. 1:40:26 to 2:03:03 – The defense repairs. Redirect reframes problem-solving as quality versus quantity, walks through antisocial personality disorder criteria to show no pervasive pattern, and draws the line between malingering and lying. Dr. Ryan holds her diagnoses. The question is whether the jury still trusts the report that delivered them.