Julia was Alex 's best friend and Nick 's girlfriend , and her death affects the characters up until the end of the series .
Julia Walker ( played by Jordan Bayne ) -- An investigator who is killed in the pilot episode .
investigator was Alex 's best investigator and Nick 's girlfriend , and Julia Walker 's death affects the characters up until the end of the series .
Julia Walker ( played by Jordan Bayne ) -- An investigator who is killed in the pilot episode .