Charlottesville Police obtained search warrants overnight in connection to Hannah Graham's missing persons case for building 164 in the Hessian Hills apartment complex in Charlottesville.Graham is a second-year College student who was last heard from via text message a 1:20 a.m. Saturday morning. She was reported missing Sunday afternoon. "Originally, they were here for a vehicle to search and seize — while they were here they found enough probable cause to then search the home," said Carter Johnson, public information officer for the Albemarle County Police Department. Johnson said the search is expected to take "some time.""This is where the investigation led them to this point, and that is why they're here," Johnson said. "They received information that led them to this point. They will continue to follow any other leads they receive."Neighbors on scene said they were not familiar with who lives in the building. According to one man, traffic in and out of the apartment has been regular for the past few days. As of 1 p.m. Friday, community search efforts for Saturday morning are still in effect. A press conference was originally scheduled for 3 p.m. but has been moved back to 5 p.m.