So

 Tampered with or what happened 

 

I like randomly

 Put a screw in all of them 

Every strike plate

 Thingy missing one of the screws 

Every one of these

 

Should I

 Drop something in the hole 

 

You could of

 Replaced the crown molding 

You could of

 Caulked it 

Big enough hole

 For a 

Somebody knew knows

 That hole is there because they took the time to tape and paint over a big hole in the wall