It’s my understanding he did not tty to call Rogan til after he had “found" Maggie and Paul and called 911
Yes, you are correct.
I just pulled some of these times from the data timeline and found some things interesting.
He was on the phone with 911 for 7 minutes, so that takes us to 10:13 pm, roughly, and he hangs up with 911 saying he has to call family.
(Edited to add: yes, I know he drove to his house but I still think it was more than enough time to hide some things and with plans for Blanca to come over and no one from law enforcement searching the house....and he returned to the kennels three minutes before he contacted RM.)
He doesn't make another phone call for well over 6 minutes - plenty of time to clean up a bit, search Paul for the pills or phone and see the 9:58 pm text from Rogan.
After calling his brothers - the next person he contacts is Rogan at 10:21 pm, 10:24 pm and 10:30 pm and even searches a restaurant before contacting BM at 10:44 pm (23 minutes after his 9 minute frantic phone call/texts/face time to Rogan).
Why would contacting Rogan, your dead sons friend, be more important than contacting your surviving son?
9:58 p.m.: After not hearing from Paul or Maggie, Rogan Gibson texts Paul "Yo."
10:05:55 p.m.: Alex puts the vehicle into park by the kennels.
10:06:14 p.m.: Alex calls 911 from the Moselle property. The call is received by Hampton County dispatch before being transferred to Colleton County.
In the 7-minute call, he says he found Maggie and Paul shot and neither were breathing.
During the call, he notes he is not presently by the bodies. He said he touched them after finding them but only to see if they were still breathing.
He hangs up after saying he needed to call family members.
10:19:32 p.m.: Alex Murdaugh calls Randy Murdaugh. The connection lasts 1 second. There is no record of the call in the data extraction of Alex's phone.
10:19:44 p.m.: Alex Murdaugh calls John Marvin Murdaugh. The call lasts 40 seconds. There is no record of the call in the data extraction of Alex's phone.
10:17:49 p.m.: Alex Murdaugh calls Randy Murdaugh. The connection lasts 16 seconds. There is no record of the call in the data extraction of Alex's phone.
10:18:45 p.m.: Alex Murdaugh iMessages Randy Murdaugh, stating, "Pls call me. Emergency."
10:21:25 p.m.: Alex Murdaugh calls Rogan Gibson. There is no answer. Gibson testified he was already asleep.
10:24:43 p.m.: Alex Murdaugh texts Rogan Gibson, stating "Call me."
10:30:31 p.m.: Alex Murdaugh again attempts to FaceTime Rogan Gibson. There is no answer.
10:40 p.m.: Alex Murdaugh searched "Whaley's Edisto" in Safari browser.
10:44:20 p.m.: Alex Murdaugh calls Buster Murdaugh. The connection lasts 8 seconds.
10:45 p.m.: Alex Murdaugh calls Brooklyn White. The connection lasts 13 seconds. There is no record of the call in the data extraction of Alex's call.