 though in the same articles, his roommate noted he had  become obsessed with death and astral projection, and had begun reciting extended monologues about his new spiritual beliefs to his friends . Helder was not at the top of his college class, but his teachers described him as a reasonably good, quiet and polite student, and at first there was confusion as to what the motivation for the bombings could be .
<clarity>  though in the same articles, his roommate noted he had  become obsessed with death and astral projection, and had begun reciting extended monologues about his new spiritual beliefs to his friends . Helder was not at the top of his college class, but his teachers described him as a reasonably good, quiet and polite student, and at first there was confusion as to what the motivation for the bombings could be .
 though in the same articles, his roommate noted he had become obsessed with death and astral projection, and had begun reciting extended monologues about his new spiritual beliefs to his friends (which they had mostly "laughed off") .