Andre Antonio Henry, 30, of Brandywine, was sentenced to 18 years behind bars for three burglaries committed in Montgomery County—six years for each burglary, according to a press advisory from Montgomery County's state's attorney's office. Henry pleaded guilty last month to three counts of second-degree burglary, according to the advisory:

A burglary at National Brokerage Associates (8455 Colesville Rd., Suite 1500, Silver Spring) on Jan. 28, 2013.

A burglary at Federal National Payables (7315 Wisconsin Ave., Suite 600W, Bethesda) on Feb. 27, 2013.

A burglary at Washington Real Estate Investment Trust (6110 Executive Blvd., Suite 800, Rockville) on April 4, 2013.

One of the clues that helped detectives link Henry to the burglaries was paperwork from the Washington, DC, court system left behind at the scene of the Silver Spring burglary. The paperwork listed theft charges against Henry, according to court documents.And, a digital picture frame stolen from the Silver Spring address was found, under a search warrant, at the place where Henry was living, in the 400 block of 50th Street NE, Washington, DC, according to court documents."Protecting our businesses from serial commercial burglars is a priority. Our residents and business owners must feel safe to live, work and operate a business in Montgomery County," Montgomery County State's Attorney John J. McCarthy said."You cannot come to Silver Spring, Bethesda, Rockville or anywhere in our county and rob our businesses. You will be found, you will be arrested and you will be locked up for a long, long time," he continued.