( CNN ) -- Three weeks ago , Teleka Patrick disappeared . The 30-year-old doctor in residency failed to show up for work on December 6 in Kalamazoo , Michigan . The night before , police 100 miles south in Indiana found her car abandoned but not crashed in a ditch off busy I-94 . Investigators searched but came up empty . `` We looked everywhere , '' Sgt . Rick Strong of the Indiana State Police told CNN . Now investigators have more potential evidence , about 20 minutes worth . Videos provide clues . Surveillance and home videos uploaded to YouTube provide clues about Patrick 's movement in the weeks , days and hours before she vanished . In a different context , the YouTube videos might be considered sweet or romantic . They feature Patrick talking , cooing and singing to someone unnamed and apparently unknown . Patrick 's mother told CNN she was n't aware of any romantic relationship her daughter may have had . But the videos have an intimate feel to them . `` Hi , baby , '' Patrick says in one . `` I am just coming to you to say 'hi ' and tell you about my day . '' In another video , Patrick shows a table set for two with omelets and pancakes . `` If you were here , this is what would be your plate , '' she coos . The two videos were posted in early November . It 's not completely clear why they only drew attention now . A third video to surface comes from a local hotel in Kalamazoo . That 's where Patrick went on the night of December 5 , just hours before police found her car in that ditch . At a little past 7:30 p.m. , Patrick , dressed all in black , showed up at a Radisson hotel not far from the hospital where she worked . She spent around 10 minutes talking with employees at the reception desk but ultimately left . There 's no audio on the video , and it 's not clear why Patrick failed to book a room . But at 7:48 p.m. , she strode across the hotel 's tiled floors , out the door and onto a hotel shuttle bus . Those images provide the last known picture of Patrick . Friends , family shocked . Patrick 's disappearance has , from the beginning , drawn shock from many corners . Her family says Patrick , who had just moved to Michigan , bought a plane ticket to come visit them for the holidays in Florida . Her colleagues called her `` part of our family of medical professionals . '' And CNN 's audience posted by the droves on iReport asking for coverage in the hopes that more information and coverage would propel the case forward . The young doctor was described in comments as `` wonderful , '' `` beautiful '' and `` talented . '' The newly discovered videos add to the swirl of questions surrounding this case . Investigators have said they have no evidence of foul play , but they also do n't have conclusive evidence that Patrick 's movements on December 5 were voluntary . Police brought out dogs to track Patrick 's scent . They led investigators the 30 or so feet out of the ditch where Patrick 's car rested to the highway . There , the trace went cold . `` We have scoured , searched and looked at everything we could possibly look at -- all the exits , all the businesses , all the hotels , '' Strong said . `` We posted fliers ; we talked to neighbors ( who live near the highway ) . We did a full-blown , on-the-ground search in the wooded area north of where the car was . '' Carl Clatterback , a private investigator hired by Patrick 's family , told CNN that investigators are looking into the videos . A central question : Who is Patrick talking to in the videos and does that person know anything about what happened to her ? CNN 's Tiffany Campbell contributed to this report .
The 30-year-old doctor in residency failed to show up for work on December 6 . Investigators searched but came up empty . Now , they are poring through 20 minutes worth of video . A man who lives near the hospital said he saw a woman running from the building with her hands up.