So what? Check in your near family. It has happened in our family as well. Some lady or gents might have died in their young age.
What an inclination of a particular ideology often make you apply different criterion to different people. What is applicable to Sadguru, may not be applicable to others. This reminds me the heart attack of a judge in a party resulting into his death. People propagated in a big way that his death was suspicious as he had heard the case of Amit Shah. Any such accident is even remotely associated with someone you hate, suspicion is roped in. Those who asks for proofs in every matters behaves like a believer of Superstitious.