Is “The basic annals record that the court issued an edict to behead him; while the 'Biographies of Treacherous Officials' records that a secret edict only dismissed him from office and exiled him, and that he died at the hands of Xia Zhen and others who killed him on the way.” true?

In the 'History of Song, Annals of Ningzong, Part 3', the handling result is recorded as: 'On the day of Xinmao, an edict was issued to display Tuozhou's head in the two Huai regions.' However, in the 'History of Song, Biographies of Treacherous Officials, Part 4', it is recorded that Empress Yang and others obtained a secret edict from the emperor which only said: 'May dismiss the Grand Councilor of Military Affairs and assign him to a temple post outside the capital. Chen Ziqiang, who flattered and held a nominal position, disregarding state affairs, may be dismissed as Right Grand Councilor. He must leave the capital immediately.' There is no intention to kill. His actual cause of death is: 'The next day, Tuozhou entered the court, Zhen stopped him on the way, and dragged him to the side of Yujin Garden and killed him.' The two accounts differ greatly regarding whether the emperor's intention was execution or demotion, and the actual circumstances of his death.