(Bridgeport, CT – Feb 26, 2013) – A Shelton woman faces multiple counts of threatening after she sent letters containing a suspicious substance to Saint Vincent’s Medical Center.D etective David Garcia led the investigation.  He and Lt. Chris Lamaine arrested Theresa Burden, 37, of 71 Sachem Drive in Shelton, today  for four counts of first-degree threatening.  She was held on $50,000 bond.

Burden is a student of the St. Vincent’s School of Nursing, and the charges stem from threatening letters containing a suspicious substance that have been sent to the hospital commencing on Dec. 12, 2012.

The letters  caused alarm on numerous occasions within the institution, resulting in the hospital closing portions of the  facility until the substance could be analyzed by state and federal authorities.

Burden was arrested at her home without incident and the motive for sending the letters has not been established. The investigation is ongoing, according to Capt. James Viadero, the head of the Bridgeport detective bureau.

The State Police are currently investigating a similar case in which threatening letters containing a similar substance were sent to the Governor. No arrest has been made in that investigation.