First, it was my understanding that LVD told Detective CY that Charles had taken JJ to the car with his backpack and left his phone inside the kitchen on the counter and that - after CV returned to retrieve his phone and Tylee had come out with bat and Charles had taken it from her - Lori had then urged Tylee to go out to the car with JJ. (That is, Tylee was not the one who originally took JJ to the car according to Lori.)
Timeline of Charles' phone from today's testimony:
CV’s phone arrives at Lori’s house at 7:31 and at 7:37 Charles is texting Lori’s brother Adam (based on Adam's testimony, this was to let him know that Alex is at the house and they together assume that “something is up.”)
Between 7:37 and 7:49, Charles’ phone is “in the area of” the rental house where Lori was living.
(My notes: So 12 minutes for all the following to happen: Charles gets out of his rental car, which he leaves running, knocks at door and comes inside into kitchen area, leaves his phone on counter, gets JJ and his backpack and Lori tells him that he will need to get JJ breakfast and that school gate doesn’t open until around 8:20, loads JJ and his backpack into the rental car, goes back into the home to retrieve his phone, has reported conflict involving Lori keeping his phone away from him, for Tylee to come out of her bedroom with bat, for CV to threaten Tylee with bat and to come after Lori backward swinging the bat, for Alex to grapple with CV and bat and become injured on back of his head, for Alex to go to his bedroom to retrieve his loaded gun – and, what is Charles doing, twiddling his thumbs while Alex goes back to the bedroom to get a gun? -- , for Tylee to go out to the car where she hears the shot, for Lori to join her there and ask that Tylee go inside for Lori’s purse, and for Lori to depart with JJ, and Tylee - and possibly JJ's dog - in the car).
At 7:50 Charles’ cellphone leaves the area of the house (Lori drives away in Charles’ rental car).
At 7:52, Alex calls Lori on her own phone.
At 7:54 Lori is on camera at Burger King drive up window, where she purchases Chicken Fries and a small Sprite for breakfast for JJ (and it looks like chicken nuggets for likely Tylee). Receipt time 7:56 am. Phone travels north from Burger King.
At 8:06 am, Alex calls Lori on her own phone.
At 8:16 am, Lori arrives at Walgreen’s on Cooper Rd.
At 8:17, Lori is seen on surveillance walking into Walgreen’s to purchase two pair of flip-flops (one for herself, one for Tylee). Transaction complete at 8:20 am. Phone heads south.
At 8:33, phone arrives at LIFE academy where JJ goes to school. (8:35 is when 911 call is placed by Alex – that is he waited until LVD was in a place where she can be seen by others, i.e. not at the home where CV was shot).
At 8:49, CV’s phone – traveling south - returns to the neighborhood, “in the area of” the home. Approx 8:48 police body cam video on and Lori’s arrival at scene is seen.
Various times indicating Lori was transported to the Chandler PD Family Advocacy Center (where she was interviewed) and then was transported back to the area of the home – arriving in the “noon hour” (where she, AC, and TR then left in the rental car because the house and Alex’s, Lori’s, and Tylee’s vehicles were all subject to search warrant).
Charles’, Alex’s, and Lori’s phones all in the area of Alex’s house between 1:42 and 2:07 pm. Lori called Det Ynclan’s phone at 2:07 pm.
At 2:18 pm, Lori was already calling Valley of the Sun Mortuary.
Charles’ iPhone returned to the area of the home between 2:43 and 3:11 so Lori could return that device to detectives, as requested.
Conclusion:
At the very least, we know that Alex was done shooting CV for the second time (or maybe I should say we know CV was down and immobilized) by 7:52 when he called Lori on her own phone. Alex called 911 at 8:33. So he waited at least 41 minutes to call 911 after CV had been shot.
Also, AC's call to 911 at 8:33 am coincides with LVD's arrival at JJ's school. To me, this indicates they had agreed - either as part of an original plan or in a plan they made in the calls after Lori left the home - that 911 would not be called until LVD was somewhere that other witnesses would see her, as they believed that would prove that she was NOT at the home when CV was shot.
ETA: Note that the 7:37 to 7:49 timeframe... when talking to Det CY and asked particulars about what was happening when, Lori described this as "all happening in seconds."