He was the CEO of Bestman Salvage until he was unintentionally driven out of business when Tony Stark and the U.S. Government founded the Department of Damage Control, so he used the remains of Chitauri and Ultron Sentinel technology to become a black market weapons dealer and obtained a vulture-themed flying suit which he used to steal more dangerous technology to sell. Adrian Toomes was apparently a kind and hardworking man who did what was best for his Wife Doris and daughter Liz.