Bheeshma, KulGuru Kripacharya and great archery teacher DronaCharya were NOT evil people ...they just had to stay with the Kauravas due to their promise to the king...and were not evil people. But cruel and cunning SriKrishna did not care...he finally did murder them by doing cheating like shooting arrows at Karna after the evening time has passed by rules of the war. Then with no guilt of cheating in the timings our Hero Krishna went dancing in the village grave coolly with his gopikas and also loved Draupadi who i must say was quite good-looking, so cant blame our Hero who we pass off as God