2026年3月31日 / 美国东部时间早上6:35 / 哥伦比亚广播公司/美联社
犹他州普罗沃——被控杀害保守派活动人士查理·柯克的男子的律师要求推迟原定于5月举行的预审听证会，称他们需要时间审阅大量材料以及可能对其辩护起到关键作用的子弹分析结果。
泰勒·罗宾逊的辩护团队在近期提交的法庭文件中表示，美国烟酒枪炮及爆炸物管理局（ATF，联邦执法机构）的一项分析无法将尸检中发现的子弹碎片与现场附近找到的步枪进行确定性关联。
根据法庭文件，联邦调查局（FBI）正在开展额外检测。
据哥伦比亚广播公司盐湖城下属电视台KUTV报道，这些文件显示，FBI“正在进行”第二次子弹分析以及对制造该子弹的铅材料的分析。
ATF的报告尚未公开，但辩护律师在其他公开文件中援引了部分片段，称检测结果无法得出定论。
2025年12月11日，被控枪杀查理·柯克的泰勒·罗宾逊在犹他州普罗沃第四地区法院的一场听证会上出庭。
法医弹道分析的结果很大程度上取决于子弹碎片的大小和状态。专家会寻找子弹经过枪膛时留下的独特微观痕迹。这些划痕就像指纹一样，没有两把枪支会留下完全相同的标记。
辩护团队在其动议中表示，他们可能会在预审听证会上利用该分析结果为罗宾逊洗脱罪名，而检方则旨在证明他们已有足够证据对罗宾逊提起诉讼。
检方打算对22岁的罗宾逊寻求死刑判决。罗宾逊被控于9月10日在奥勒姆市犹他谷大学校园枪杀这名保守派活动人士，罪名是加重谋杀。罗宾逊尚未作出抗辩。
检方称，在该步枪的扳机、已发射的弹壳以及两枚未发射的弹壳上发现了与罗宾逊DNA相符的物质。辩护律师指出，法医报告显示部分物品上检测到了多人的DNA，他们称这需要进行更复杂的分析。
检方称，据报道罗宾逊曾给其恋人发短信称，他之所以 targeting 柯克，是因为他“受够了他的仇恨言论”。
罗宾逊将于4月17日再次出庭，就辩护团队提出的禁止法庭内使用摄像机的动议进行听证。
Charlie Kirk’s accused assassin’s lawyers question link between bullet from autopsy and rifle found near scene
March 31, 2026 / 6:35 AM EDT / CBS/AP
Provo, Utah — Lawyers for the man charged with killing conservative activist Charlie Kirk have asked to delay a preliminary hearing scheduled for May, saying they need time to review an enormous amount of material and a bullet analysis that could contribute to his defense.
Tyler Robinson’s defense team said in recent court filings that an analysis from the Bureau of Alcohol, Tobacco, Firearms and Explosives, a federal law enforcement agency, couldn’t conclusively connect a bullet fragment recovered during an autopsy to the rifle found near the scene.
The FBI is running additional tests, according to court documents.
Those documents say the FBI is “in the process” of conducting a second bullet analysis as well as an analysis of the lead the bullet was made of, according to CBS Salt Lake City affiliate KUTV.
The ATF report has been kept private, but attorneys have cited snippets in other public filings that say the results were inconclusive
Tyler Robinson, accused of fatally shooting Charlie Kirk, appears during a hearing in Fourth District Court on Dec.11, 2025 in Provo, Utah. Rick Egan-Pool / Getty Images
The success of a forensic ballistics analysis largely depends on the size and condition of the bullet fragments. Experts are looking for unique, microscopic markings that are left on a bullet as it passes through the gun’s barrel. The scratches are like fingerprints in that no two firearms make identical markings.
The defense said in its motion that it may try to use the analysis to clear Robinson of blame during the preliminary hearing, while prosecutors aim to show they have enough evidence against him to proceed with a trial.
Prosecutors intend to seek the death penalty for Robinson, 22, who is charged with aggravated murder in the Sept. 10 shooting of the conservative activist on the Utah Valley University campus in Orem. Robinson has not yet entered a plea.
Prosecutors have said DNA consistent with Robinson’s was found on the trigger of the rifle, the fired cartridge casing and two unfired cartridges. Defense attorneys note that forensic reports indicate multiple people’s DNA was found on some items, which they say requires a more complex analysis.
Robinson reportedly texted his romantic partner that he targeted Kirk because he “had enough of his hatred,” prosecutors have said.
Robinson is due back in court April 17 for a hearing on a defense motion to ban cameras from the courtroom.
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