A man who firebombed a Cincinnati abortion clinic - and who supports the killing of abortion doctors - was quietly released from a federal prison early Friday.

John Brockhoeft was freed after serving four years of a seven-year sentence for the Dec. 30, 1985 firebombing of a Planned Parenthood clinic. No one was injured in the attack.He previously served 26 months in prison for trying to firebomb a Pensacola, Fla., abortion clinic in 1988.

Brockhoeft, 43, now faces three years of probation under severe restrictions. Among other things, he must stay away from Planned Parenthood centers and staff and anyone associated with the anti-abortion movement. In addition, he can't be represented or employed by anyone who advocates violence in the anti-abortion movement.

Clinic operators were hoping for tougher sanctions, including barring Brockhoeft from the area.

"Planned Parenthood . . . does not want John Brockhoeft for a neighbor," the organization said in a statement Thursday. "We will not be diverted from our mission to provide reproductive health care and sexuality education programs just because he will be in the Cincinnati area."

Brockhoeft has promised to stay out of trouble. But in a newsletter published from prison, he called the killing of abortion doctors "justifiable homicide."

And in a 1993 prison interview, he said: "While violence is always wrong, the use of force is legitimate if it is being applied to opposing injustice or death or bodily harm towards an innocent person."