A teenage boy has been arrested in the robbery of a Marshalltown Credit Union Monday. Marshalltown The robbery happened just before noon and Marshalltown Police Chief Lon Walker says his department got some help in making the arrest.He says they got a tip after hearing a description of the suspect on the radio and saw someone fitting the description get into a vehicle a few blocks away from the robbery. Walker says they received a second tip soon after the first and that led to the arrest of 15-year old is Fernando Samuel Garcia. Walker says there’s plenty of evidence linking Garcia to the crime. He says they recovered the money,the gun, the ski mask, the sweatshirt, the pants, the gloves and the shoes that he was wearing at the time. He says they have footprints from the scene that match the shoes. Walker say they recovered all the money the credit union said was stolen, but he wouldn’t give an amount. Walker credits the community members who helped lead police to the suspect.He says it’s one of the goods things about living in a small town, “where neighbors are looking after neighbors and are concerned with the welfare of the community.” Walker says they would’ve had a difficult time solving the crime without the tips. Garcia is being held at the Eldora youth detention facility while the police department confers with the F-B-I on whether the boy will face federal or state charges.