Edison did not steal his invention, he used a different current and was also not necessarily against tesla. He was against westinghouse who was his "rival"
But Im also not fully educated on the matter so take it with a grain of salt.
Edison didn't steal anything from Tesla. At least half of the stuff you idiots claim Tesla invented he had nothing to do with. Tesla spent more time building up the mad scientist image than he did actually working on things. Most of what you hear about him stems more from this image he cultivated than his actual work.
But Im also not fully educated on the matter so take it with a grain of salt.