Marcuse received death threats in the summer of 1968

Evidence

When I arrived in Berkeley, one of the main protagonists in the story I hoped to tell, Herbert Marcuse, was in hiding from death threats in Lowenthal’s summer home in Carmel Valley. — Martin Jay, The Dialectical Imagination, 4

Categorization

• QUESTION: Which faction issued the death threats - right-wing Californians? Unclear and worth chasing.