Luigi Mangione left a glowing Goodreads evaluation for Ted Kaczynski‘s ‘Unabomber Manifesto’ — and the chance it impressed Mangione’s alleged homicide of UnitedHealthcare CEO Brian Thompson is heartbreaking, says the late prison’s brother.

David Kaczynski tells TMZ he was advised yesterday by a good friend that Mangione had learn the Manifesto … and it breaks his coronary heart understanding his brother could be seen as a mannequin for acceptable violent habits.

“It breaks my coronary heart to know in a roundabout way – human motivation may be very complicated — however in a roundabout way, my brother could be seen as a mannequin for acceptable, violent habits. And in my view, there isn’t a such factor” he says.

He explains to us folks shouldn’t blur the strains between his brother Ted’s concepts within the Manifesto — which he believes does not essentially result in violence — and his “despicable, hurtful actions,” which he says can result in copycats.

David reminds us acts of violence could be contagious, including — if we unfold love and kindness, it may do wonders. But when we harm others, it has the alternative impact — a really unfavorable one.

There was a Goodreads account underneath Mangione’s title that praised the Unabomber’s manifesto as “political revolutionary,” giving it a 4-star ranking again in January.