Nicholas Gerard Grant's paper trail was his downfall.
The husband of a woman who was robbed Monday at gunpoint in the Trilby Post Office parking lot said he caught Grant by following a trail of mail and other papers strewn from his wife's purse.
"He's not too bright," Steve Ashmore said.
Grant, 18, of Trilby Road was arrested Monday and charged with the armed robbery of Diann Ashmore as she put her 3-year-old daughter into a car seat outside the post office, deputies said.
Deputies said the Moore Mickens Education Center student held a gun to Ashmore's head about 2:30 p.m. Monday.
A 15-year-old Pasco High School student accused of accompanying Grant in the robbery was also arrested and charged with armed robbery, deputies said. He was taken to the Pasco Juvenile Detention Center.
Steve Ashmore, acting on an eyewitness tip, said he followed a trail of papers for about 300 yards through the woods.
In a back yard, he said he found a letter from the couple's pastor at Landmark Baptist Church in Brooksville. He peeked around the corner of the house and saw a group of men on the driveway.
One of the men fit his wife's description of the robber, Ashmore said.
So he headed back to the post office to find a deputy.
"I said, "Hey, go get him,' " Ashmore recounted to a Times reporter Tuesday.
Grant was being held Tuesday at county jail in Land O'Lakes on $30,000 bail.