According to Salon.com, "Roughly a month before the shooting death of Dr. George Tiller, the FBI received an anonymous letter warning that suspected killer Scott Roeder "would do physical harm" to the abortion provider, the Associated Press reports.
The letter didn't offer any specific details, but it just said that he would hurt the doctor.
So, I know your wondering, Why didn't the FBI act?

The crazy thing about this story is that the tipster is Mark Archer of Tunkhannock, Pa. He and his wife were fighting for custody of Roeder's 7 year-old daughter. According to Salon.com, "The wife got pregnant by Roeder before she met Archer!"
A mess right?
Mark Archer is no way a biased party, is intentions were to get Roeder listed as a domestic terrorist so that he couldn't fly from Kansas to Pennsylvania to visit his daughter.
Despite being especially motivated to find dirt on Roeder, though, Archer was drawing conclusions based on facts, not fancy. There was Roeder's arrest in 1996 for possessing explosives; the comment he made to Archer's wife about being perfectly capable of blowing up an abortion clinic; and the numerous blog posts he allegedly wrote about putting an end to Tiller's work. The conclusion was rather obvious: Roeder was determined to harm the doctor, according to Salon.com
It's quite strange that an average guy could put the pieces together to figure out this man was a threat, but the FBI couldn't do it. Take it, the FBI gets numerous calls a day from tipsters that threaten important people in our society, but maybe things should be looked at closely.
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To read the article by the Associated Press, click here