I have put together the following timeline from recent MSM articles (please feel free to add/delete/make corrections):
May 7, 2019
3:30pm- RC arrives from home from school and wakes CO from a nap. CO got ready for work and left the home.
7:30- 10:30pm- RC and her brothers were left alone in the home with AM.
10:30pm- RC's mother (CO) arrives home and goes to bed with AM, who had been asleep downstairs.
11:01pm- RC sends a text to boyfriend indicating AM is in her room.
11:13pm- RC sends a second text to boyfriend indicating she is scared.
May 8, 2019
2:00am- AM woke up and contacted [father-in-law] to secure a drug deal.
Unknown time, but after 2am- AM called local business owner looking for a place to "lay low" in the event the police witnessed the 2am drug deal.
3:00am- blocked call from AM's phone to RC's phone.
3:34am- blocked call from AM's phone to RC's phone.
3:52am- blocked call from AM's phone to RC's phone.
5:00am- AM picked up for work by co-worker.
5:22am- attempted FaceTime call from RC's phone to her boyfriend's phone.
7:00am- CO awakes and notices RC's door is open, but RC is not in the home.
9-9:30am- AM used work truck to leave job site and go home (unknown if it was to inject cocaine, or purchase drugs to take back to job site; both reasons were given during interviews).
10:13am- work truck observed at the home.
12:27pm- work truck captured on home surveillance camera less than 2 miles from where RC's body was located.
12:46pm- work truck captured on home surveillance camera leaving the area.
1:40pm- AM arrives back at job site.
3:30pm- CO begins calling and texting RC's phone when she did not return home from school. Text messages were undeliverable, calls went directly to voicemail.
5:00pm- CO leaves work and drives to the school.
5:30pm- After she was unable to locate RC, CO went home. CO receives automated call from the attendance office indicating RC was absent from school.
6:00pm- RC reported missing. Last seen wearing black hoodie and black leggings.
05/16/2019- RC's body located
05/17/2019- AM arrested for murder.
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