News 5 Cleveland reports 55-year-old Michael Hopkins died of injuries sustained while building homemade explosive devices in his garage in Jefferson township, Ohio on Saturday.
A search on VoterRecords.com for a Michael Hopkins in that locale confirms there is indeed a registered Republican by that name, aged 55, living at the address in mentioned in the News 5 article. The article does not mention whether the bombs were intended to be used in a MAGA white nationalist terrorist attack or if they were meant for a gender reveal party.