NISKAYUNA, N.Y. – A Schenectady math teacher arrived to his Niskayuna home Tuesday afternoon to find a burglar had entered his home and was still inside. “I wanted to get this guy, and he was not going to get away with breaking into my house,” Jason Adams said. Adams is a ninth grade math teacher. When he returned to his house on Tuesday, he found a fresh set of footprints in his driveway. He followed the tracks and discovered a burglar had gone through the bathroom and opened the door. But Adams didn’t back down. “I screamed, ‘I know you’re here,’” he said. Adams began searching his home and found papers on the ground and dressers pulled out. He went up the stairs and checked each room. Next came the moment he would never forget. “When I turned around, I see the guy pivot behind this door,” he described. An altercation ensued, and the fight spilled into the living room. “At this point, I jump on him,” Adams said. “We go down the flight of stairs.” Furniture was damaged and a fish tank was knocked over. “I’m on top of him; we’ve exchanged blows,” Adams explained. “He gets on top of me. I regain dominance again.” Adams said his jacket as well as the burglar were covered in blood. “And he says, ‘I can’t go back to jail,’” Adams said. That’s when the burglar, 52-year-old Mark Snare, took off running. Adams chased after him. “I dial 911,” Adams said. “He’s 20 feet away the entire time.” “Actually unbelievable that he was able to get a cool mind after what he had gone through,” Lt. Michael Stevens with the Niskayuna Police Department said. Adams helped police locate and arrest Snare. “I had no idea what I was thinking,” he said. “I just wanted to get the guy.” While police praise Adams for his heroism, they warn others not to do the same. “If you get home and you think somebody is in the house, get out of the house and dial 911,” Stevens said. Adams agrees. “I realized I should have called 911 at this point,” he said. “I should have called much earlier.” But Stevens said Adams didn’t have a choice but to defend himself. Police said Snare has an extensive criminal history. He currently had an active warrant from the New York State Parole office, and he has since been charged with felony Robbery in the Second Degree and felony Burglary in the First. Snare has been sent to the Schenectady County Jail without bail.