Is Toyota really to blame for the deaths of 45 people with their cars?

Has anyone considered this may be sabotage by the other automakers, to knock Toyota from the No. 1 sales slot in America? since the other automakers have lost ground with the public in manufacturing quality automobiles, is it possible that some of Toyotas onboard auto computers have been tampered with to cause a deadly malfunction? i realize the computer incidents have been totally ignored by Toyota for a great while. i guess they hoped the problem would go away. But, has anyone even considered sabotage?