Published: Nov 11, 2010 9:21 PM EST
Updated: Nov 11, 2010 6:21 PM EST

MIAMI (AP) - Authorities are questioning a potential suspect involved with threatening to harm South Florida schools and government buildings.

Schools were locked down Wednesday after an unidentified woman called a radio station and said her husband might go to a campus and open fire with a gun.

Pembroke Pines Police said the unidentified potential suspect was in custody Thursday and is not cooperating.

The man who sent the message identified with the station's conservative radio talk show host, Joyce Kaufman, who was tapped to be Republican U.S. Rep.-elect Allen West's chief of staff.

On Thursday, Kaufman said she will not join his staff and participate in efforts to bring down West's political career.

Kaufman called the incident "an electronic lynching."