A man who allegedly scaled an iron security fence in the middle of the night, eluded police and set fire to the Pennsylvania governor’s mansion is being treated at a hospital after an unrelated medical event.

HARRISBURG, Pa. (WPVI) -- A mechanic who has previously expressed disdain for Democrats on social media is arrested in connection with the overnight fire at Pennsylvania Gov. Josh Shapiro's residence, sources familiar with the suspected arsonist told ABC News.