TAMPA, Fla. (CBS TAMPA) – The main suspect in a November grocery store robbery is in custody after DNA evidence on a mask he dropped identified him.

A Hillsborough County sheriff’s office says on November 12, 2011 at 11:17 p.m. a masked suspect with a gun entered a Sweetbay Supermarket on Ehrlich Road. The report says the suspect forced a clerk and manager at gunpoint onto the floor of the office and then remove an undisclosed amount of money from the safe.

As the suspected robber was fleeing the scene on foot an observant witness reported see him drop a mask onto the sidewalk. This mask was recovered and sent to Florida Department of Law Enforcement for DNA extraction.

Once the DNA was identified it was entered into law enforcement’s CODIS database. CODIS is a computer software program that operates local, State, and national databases of DNA profiles from convicted offenders, unsolved crime scene evidence, and missing persons nationwide.

After almost four months  CODIS matched the mask DNA profile to 21-year-old Tayrian Jarell Crobsy of  Tampa.

Crosby was taken into custody Tuesday and charged with Robbery and 2 Counts of Battery.

A Hillsborough County sheriff’s office says on November 12, 2011 at 11:17 p.m. a masked suspect with a gun entered a Sweetbay Supermarket on Ehrlich Road. The report says the suspect forced a clerk and manager at gunpoint onto the floor of the office and then remove an undisclosed amount of money from the safe.

As the suspected robber was fleeing the scene on foot an observant witness reported see him drop a mask onto the sidewalk. This mask was recovered and sent to Florida Department of Law Enforcement for DNA extraction.

Once the DNA was recieved it was entered into law enforcement’s CODIS database. CODIS is a computer software program that operates local, state, and national databases of DNA profiles from convicted offenders, unsolved crime scene evidence, and missing persons nationwide.

After almost four month  CODIS matched the Sweetbay mask DNA profile to 21-year-old Tayrian Jarell Crobsy of  Tampa.

Taurian Jarell Crosby was taken into custody Tuesday and charged with Robbery and 2 Counts of Battery.