Just reading about this case and its terribly sad they haven't found her.
The timeline does indicate some things to us. Lets take a look at this part.
http://www.scribd.com/doc/250595664/Find-Christina-Timeline
0355-CM and EA on camera walking into garage (timestamp on video says 0357)
0358-EA’s car on video leaving garage
10 min
0408- EA drives through main toll gantry at Custer Rd. on 121 northbound
39 min
0447 -CM’s phone pings tower at 5800 Granite Pkwy
(north of Shops at Legacy)
9 min
0456-EA’s phone pings tower at 5800 Granite Pkwy
(north of Shops at Legacy)
36 min
0532-EA’s phone pings tower at 1500 block of E Bethany Dr.
(near EA’s home)
4 hrs 43 min
1015-EA at Kroger gas pump cleaning back and passenger side of car while refueling
36 min
1051-EA arrives at Sprint
All JMO
I dont think he attacked her in the parking garage. There is only 3 minutes from 3:55 to 3:58 and he is in his car leaving garage.
I think he lured her into the car telling her he could get supplies to party. Note the texts right before that where he is trying to acquire party supplies. So with only 3 minutes there and he is leaving I think they both left in his car and she was still ok.
Now in this creeps mind he probably has no intention to do anything but attack her as soon as he can get to a place to do it. She doesnt have a clue just yet what his real intentions are and so he begins his drive.
I think she is still ok at 4:08 because he drove through a toll area of some sort. Usually cameras around and other cars slowing for the toll. He probably knew this area was coming up so I don't think he pulled anything before then.
So lets assume she is still alive and in car driving with him at 4:08 at the toll area.
This is where things get a little dicey. 39 minutes pass until....
04:47 CM’s phone pings tower at 5800 Granite Pkwy
(north of Shops at Legacy)
I think she gets clobbered or choked right here after her phone pinged. I think this is at the point where she realized his intentions and she wanted no part of it and he would not take no for an answer. I think he had grabbed her phone and he turned it off and it pinged as it was being shut off is my guess. I think he hurt her real bad here and knocked her out and maybe did worse at this point. Shortly after 4:47 this all occurred.
I think he must have been pulled over somewhere in his car with her. Maybe a dark area of a parking lot or behind some stores or something.
After he is finished attacking her he puts her in the trunk here is my guess. All of that could happen in 9 minutes. Because notice what happens next.
9 minutes later at 0456 his phone is now pinging so I think he turned his phone off now as he was leaving the same general area. Location is same. He is now driving and heading where? Where else? The monster is driving towards home because he doesn't know what else to do. He has to regroup now. He may also need a shovel or some other materials. Not sure if he ever goes in the house but at some point near his house he turns his phone back on and maybe right back off at 05:32 as he leaves house area for the final dumping ground he has though of. He did not stay near his house long.
In the next 4 hours and 43 minutes he drives to the final dumping ground and dumps the body until he is finally spotted at the gas pumps at 10:15.
That's a lot of time to drive somewhere quite aways away. Since he was getting gas I do think he probably drove the body to some place he had in mind to dispose of it during this 4+ hour window.
What we need to know is someone that knew him well enough to know of what place that monster would think of that was about close to a 1 1/2 hour drive away. Thinking 1.5 hour drive to go there, 1 hour to dig/dump/hide body and then 1.5 hour drive to get back.
Anyway....this is JMO in looking at the timeline and trying to figure out what that monster did. The only thing I am 95% positive about is she was still fine and in his car as they went through the toll area. Basing that on too short of time for him to pull anything before then.
I not as sure but I do think her phone pinging at 0447 is at the point of attack and I think he may have turned her phone off there. As a phone powers down I think it may do a ping. Maybe we can check on that if that is true or not.