Why would she have Lucas come to Will’s where the body is to tell him about the murder??? She of all people should understand how hard this will be! Have him meet you at the police station and tell him there! Also, both she and Rafe should be off this case immediately!
that Sami was in Chicago ready to come home for a visit, so that makes her time travel reasonable. She probably drove there from the airport, but I don’t know how she could drive if Lucas told her Will was gone. I think he just told her that something really bad happened and she needed to come home right away, so maybe she still doesn’t know that Will is dead.