Princes in the Tower may have been forewarned of Edward's illness. It is reported that he then went to York Minster to publicly "pledge his loyalty to his new king". The Croyland Chronicle states that, before his death, Edward IV designated his brother Gloucester as Lord Protector. Edward's request may not have mattered, however, since "as the precedent of Henry V showed, the council was not bound to follow the wishes of a dead king". Edward V and Gloucester set out for London from the west and north respectively, meeting at Stony Stratford on 29 April. The following morning, Gloucester arrested Edward's retinue including
Princes in the Tower to the throne. Shortly before his execution, Tyrrell is said by Thomas More to have admitted, under torture, to having murdered the princes at the behest of Richard III. The only record of this is the writing of Thomas More, who wrote that, during his examination, Tyrrell made his confession as to the murders, saying that Richard III ordered their deaths. He also implicated two other men; despite further questioning, however, he was unable to say where the bodies were, claiming that Brackenbury had moved them. William Shakespeare portrays him as the culprit, sought out by Richard after Buckingham demurs.