"Who killed lytton Doctor Who"@en . "According to the Sixth Doctor televised adventure, \"Attack of the Cybermen\", the answer is somewhat ambiguous. It certainly could be said that he died fighting the Cyber-Controller. However, there's a case to be made for saying the Doctor indirectly killed him by freeing him from the machines that were converting him into a Cyberman. Had he not been freed, he would likely have \"lived\" as a fully converted Cyberman. It's also possible that the Doctor might have been able to have more successfully disconnected Lytton from the Cyber-conversion machines had he not been working so hastily."@en . . "According to the Sixth Doctor televised adventure, \"Attack of the Cybermen\", the answer is somewhat ambiguous. It certainly could be said that he died fighting the Cyber-Controller. However, there's a case to be made for saying the Doctor indirectly killed him by freeing him from the machines that were converting him into a Cyberman. Had he not been freed, he would likely have \"lived\" as a fully converted Cyberman. It's also possible that the Doctor might have been able to have more successfully disconnected Lytton from the Cyber-conversion machines had he not been working so hastily."@en . .