During the negotiation, Wyatt had insisted that the Tower should be surrendered to him, and the queen put in his charge. Although the reformers in London had at first been in sympathy with him, these demands caused a negative reaction. Upon entering Southwark, Wyatt and his companions soon discovered the high security measures that had been implemented, and that London Bridge was fortified. As a result, many of his followers abandoned him, forcing him to leave Southwark. He instead headed towards Kingston-on-Thames, with new plans to surprise Ludgate and intentions to capture the Queen's refuge in St James's Palace. The government soon found out about his strategy, and responded by allowing him to progress into the city, only to corner him from all sides. After several skirmishes along the way, with the numbers of his followers dwindling continually, Wyatt eventually admitted defeat. He was arrested and taken to the Tower of London. On 15 March, after a trial which was little more than a formality, he was sentenced to death for high treason. Sentence was delayed in hopes that he would place some blame on Mary's half-sister Elizabeth, but he did not confess enough to put her in danger.