New details have come out about the killing of 18-year-old Zoe Hastings.
Hastings disappeared Oct. 11 after returning a video to a Redbox at a Walgreen's only a minute from her home.
She was headed to a 5 p.m. church meeting but never made it.
Antonio Lamar Cochran is charged with her capital murder and is in jail under a $2.5 million bond.
New court documents obtained Wednesday also tell why police immediately began looking at Hastings’ social media life.
Hastings was stabbed to death, left to die in a pool of blood outside the white minivan she left home in.
The medical examiner lists Hastings’ cause of death as "incised wounds to the neck."
Incised wounds are relatively cleanly made cut marks or slashes across an area. That explains why detectives took several pocket knives and other sharp instruments from the apartment where Cochran was staying with friends, hoping to find the murder weapon.
Hastings was headed to a mission preparation class at the Lake Highlands Church of Jesus Christ of Latter-day Saints that started at 5 p.m.
New court documents show her cell phone indicated that she left home at 4:41 p.m.
One minute later, she was returning a video rental to the Redbox outside Walgreens at Peavy and Garland roads.
At 5:01 p.m., Hastings’ cell phone was at the crime scene where her body would be found Monday morning -- twenty minutes after leaving home and at the very moment her Bible class was to get underway.
The evidentiary search warrant affidavit reads "...the male committed capital murder to...Zoe Hastings...by causing her death and taking property of her car keys."
Police are searching social media accounts of both Cochran and Hastings, such as Facebook and the popular dating app Tinder.
According to court documents, "...a close friend of...Hastings’ confirmed she utilizes an active Tinder account” and that detectives "...observed a Tinder notification on...cell phone."
That cell phone was found inside the minivan that Hastings left home in.
Eyewitnesses say Cochran got out of a silver car and approached Hastings at the Walgreens.
He was about six or seven miles from his home on Amesbury Drive, reportedly sitting in his car outside Walgreens until Hastings drove up.
There's a 19-minute gap from the time they left Walgreens at 4:42 p.m. to when her cell phone was at the crime scene at 5:01 p.m.
The crime scene where Hastings was found was just a mile and a half from the Walgreens