Both Kakashi and Obito awaken their Mangekyou at the same time as told in this question [When did Kakashi and Obito awaken their Mangekyou Sharingan?](https://anime.stackexchange.com/questions/4484/when-did-kakashi-and-obito-awaken-their-mangekyou-sharingan) The sharingan Kakashi owns originally came from Obito, so is it due to Obito also being there at the moment Rin died that Kakashi's Mangekyou also awakend? Or asked in a different way. Would Kakashi have been able to awaken the Mangekyou without Obito being there?