DeKALB - The search for a 26-year-old Maple Park man missing for more than two months continued Thursday as divers from the Naperville Police Department scoured a retention pond within walking distance of where the man was last seen. Bradley Olsen has been missing since the early morning hours of Jan. 20. He was last seen at Bar One, 1000 W. Lincoln Highway, where he was attempting to get a ride home. On Thursday, the Naperville Police Department's Underwater Recovery Team searched the pond at the South Annie Glidden Road entrance of The Knolls subdivision, which is about three-quarters of a mile from the bar. “The guys that are helping us - this is one of their training days,” DeKalb Police Lt. Jim Kayes said around noon. “They have not turned anything up.” The team arrived around 9:30 a.m. and stayed about six hours. Kayes said the team of five or six divers did a thorough search of the pond. “I'd just like to find this guy,” Kayes said. “We don't know where to find anything on him.” Kayes said the department has investigated some leads, but nothing has lead to Olsen. “We're not coming up with anything concrete, just people saying ‘So-and-so did this and this has happened,'” Kayes said. On Feb. 24, about 140 people helped search DeKalb and parts of central DeKalb County, Maple Park Fire Chief Kevin Peterson said. They walked along ditches, and people in cars and all-terrain vehicles also searched the area. Olsen's family will again search the area for one last time on Sunday, Peterson said. “We're searching again because there was a lot of ice and snow last time,” he said. “We'll go farther out into Genoa and Kirkland. We may also go out along Route 47 in Kane County.” Anyone interested in helping search can show up at 9 a.m. at the Maple Park Fire Station, 305 County Line Road. For information, call Peterson at (815) 827-3500. On Feb. 5, Olsen's mother and father, Susan and William, printed out hundreds of color fliers with their son's photo and information about a $20,000 reward for any information leading to Olsen's whereabouts. They last saw Olsen on Jan. 12 before they went on vacation. They returned on Jan. 24. He was reported missing a week later. His parents said all of his belongings and checking accounts have been untouched. It was rare for Olsen not to contact his parents. Olsen is 5 feet 8 inches tall, weighs about 175 pounds and has blue eyes and brown hair. He has a tattoo of a palm tree on his left ankle and a tattoo of a sun on his back. He was last seen wearing a brown leather jacket, a black shirt, jeans and boots. Peterson said Olsen's parents are hoping to find some clues to lead them to their son. “They've had a hard time,” he said. “If anything they just want an answer, but more than anything they just want closure.” Anyone with any information about Bradley Olsen should call the DeKalb Police Department at (815) 748-8400. Aracely Hernandez can be reached at firstname.lastname@example.org.