They had to track down where Christine was because of the description which was given about her by the witness who had to see her at the place of the shooting.

The description that was painted to her hence they had to find her and finding her was no easy task seems she had been given beforehand information as to this matter so she was in hiding and would not come u til she was done with what she wanted to do even if it meant she lost her life in the process of it.

Lewis had left and gone to the office to be able to handle office matters...