have said that the suspect may have been target iing her for a while. law enforcement sources tell nbc news that bullock and her 4-year-old son louie were home while the suspect was going through the house taking her personal items. >> sandra bullock is a careful person who takes great precautions and has security and the fact that this individual gets on to her property is alarming. >> reporter: and police sources also say that the break-in was not a random burglary and that corbett may have been obsessed with her and even keeping a diary on the award-winning actress. >> and if anybody tried to get to me, you would have stopped them, right? >> reporter: in the 20 years of making moviesb, she has faced real life threats from stockerers. in 2008, this woman was arrested