A Grapevine, Texas, police spokesman tells PEOPLE investigators are pouring over the 24-year-old's Jacqueline Vandagriff's social media

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Police investigating the slaying and dismemberment of a 24-year-old Texas college student want to know who updated her Twitter page the day after her body was found burned in a park.

A Grapevine, Texas, police spokesman tells PEOPLE investigators are pouring over student Jacqueline Vandagriff’s social media pages as they try to learn more about the victim. But it’s the most recent post to her Twitter account that has them scratching their heads.

“Never knew I could feel like this,” reads the tweet that appeared on Vandagriff’s page on Sept. 15, one day after her torched corpse was recovered from a kiddie pool in Grapevine’s Acorn Woods Park.

“That one tweet came out with a date and timestamp that showed it couldn’t have been sent by her,” the spokesman says. “We are looking into whether there is some other method as to how it could have been sent, or if someone logged on as her.

Charles Dean Bryant, 30, has been charged with capital murder for allegedly killing Vandagriff days after he was released from custody in a separate stalking case.

“We don’t yet know if Bryant sent it out on behalf of her,” the police spokesman says. “We’re trying to make sense of that piece of the puzzle.”

Police say Bryant and Vandagriff had been seen together in a bar the night before her body was found, but authorities aren’t sure if she knew Bryant prior to that evening.

The night before her remains were discovered, Vandagriff tweeted, “I’m glad I decided to get off tinder and waked [sic] into a bar.”

Vandagriff had been a student at Texas Woman’s University since January, where she was studying nutrition.

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The police spokesman tells PEOPLE detectives have yet to recover Vandagriff’s phone but continue searching for it. Cell phone data indicates that early on the morning of Sept. 14, her phone was somewhere in the vicinity of Bryant’s home in Haslet, Texas.

Police have secured video evidence that allegedly shows Bryant buying a shovel at a Wal-Mart hours after he was seen leaving the bar with Vandagriff, whose purse was found in a garbage can in Bryant’s home.

The police spokesman declined to release information on Vandagriff’s manner of death.

On the night before he met Vandagriff, Bryant posted on Facebook, “Teach you tricks that will blow your mind.” The day after her body was found by firefighters, he posted, “Full moon, let’s see what trouble I can get into.”

It was not immediately clear if Bryant has an attorney, and he has yet to enter a plea in Vandagriff’s death. He is being held on $1 million bond.

According to police, Bryant had been arrested for stalking and released on his own recognizance days before Vandagriff’s killing.

Police at the University of North Texas received a complaint about Bryant on Aug. 24 from a female student who said he’d allegedly been harassing her. A judge ordered Bryant to stay away from the campus on Sept. 6, but he violated that order and was charged with stalking, authorities said.

It is unclear from court records whether he’s pleaded to that charge.