The masked man wanted for allegedly robbing a stripes convenience store at gunpoint has now been arrested. Police say tips about the crime began coming in after surveillance video aired on local newscasts. Authorities say their suspect is only 18 years old. He's been connected to two robberies so far. And police believe there may be more. Police say the man in this surveillance video is 18-year-old Mathew Copenhagen, who authorities say is responsible for robberies at two stripes convenience stores. One in south Laredo, where he allegedly held a clerk at gunpoint and demanded cash. And another in north Laredo where he and an accomplice stole 48 dollars worth of cigarettes. After this video aired on local newscasts police say the tips began coming in and led them to a house in northwest Laredo. “The family actually cooperated with law enforcement and let them into the house.” Inside, police say, was plenty of evidence. “They actually found the clothing of the suspect seen in the surveillance video.” The suspect may seem young but police say it's not uncommon that a teenager would carry out such a daring crime. “Especially if they have some sort of access to gangs or relationship to drugs. These type of things don’t make for a winning combination for making rash decisions.” It's not known if this man has any ties to drugs or gangs, but police say it's a possibility that he has ties to other crimes. “Right now still seeing if he's related to other robberies around town and my understanding is that there's other parties who are facing charges as well.” About $200 was stolen in total from one of the stripes. Copenhagen faces two counts of aggravated robbery. More arrests are pending.