A Princeton University student who claimed he was beaten unconscious by two assailants after receiving death threats for his morally conservative views admitted yesterday to fabricating the attack and sending the e-mail death threats to himself, other students, and a prominent conservative professor, police officials said.

Mr. Nava, 23, is a politics major and a junior at Princeton who this semester has become an outspoken member of the Anscombe Society, a morally conservative student group that speaks out against same-sex marriage and pre-marital sex. Mr. Nava claimed that he has been receiving death threats since October after penning a column in the student newspaper, the Daily Princetonian, criticizing the university's campaign to distribute free condoms on campus as "tacit sponsorship of hookup sex." On Friday, he claimed he was attacked by two black-clad assailants and rendered unconscious after they repeatedly hit his head against a brick wall.