Police took blood and clothing samples from suspects, including the shirt Wilson was wearing on the night of the murder, which he admitted had a bloodstain on it, but it is not known whether any DNA tests were carried out.
警方取得多名嫌疑人的血液和衣物样本，其中包括威尔逊在案发当晚所穿的衬衣，他承认衣服上有血迹，但却无从得知法医是否做过DNA检测。