Excellent question. The state police were at his house shortly after the missing persons report was filed at 9pm.
He must have been s*****g a brick that they were there so fast. Remember, four phone calls to Gagnon in TX between 9:30 11:30PM. Then another 20min call to Gagnon an hour later, immediately followed by a dude-what-were-you-thinking call to the state police detective to get an update (was that Rays suggestion?), immediately followed by yet another 20min call to Gagnon (during which he decided a quick trip to Alabama was needed?)
The state cops were right back at Jacques house the very next day looking for his hard drive. Maybe Gagnon had told him to ditch it during one of those late night phone calls, so he had to come up with a lame excuse as to why his monitor had a cable attached to nothing.
If Jacques were smarter, he would have known that pointing out computer myspace pages from his work laptop would lead to questions about his home desktop. He could easily have had a nice shiny new drive with not much on it but Brookes myspace posts and told the detective his old one was fried and hed had to throw it out.