Charged in the crime was Paul Ross Evans, who lives in northeastern Travis County and has been to prison on burglary and robbery charges.
The National Abortion Federation is trying to determine whether Evans has been to the clinic in the past or made any threats against area clinics, said Vicki Saporta, president of the federation, an association of 400 abortion providers, including the Austin clinic.
Saporta said abortion providers "remain on an elevated alert . . . to make sure that we don't have somebody else who would commit a copycat crime."
Evans has been charged with three federal crimes that accuse him of using weapons of mass destruction, attempting to damage a building used in interstate commerce and attempting to damage a facility because it provides reproductive health services.
Arrest affidavit (pdf)