UPDATE: Missing IU Bloomington student died of blunt force traum - 13 WTHR Indianapolis

Indiana State Police confirm they discovered the body of 22-year-old Hannah N. Wilson in Needmore, about 20 miles from the Bloomington campus in rural Brown County, though her time of death was ruled to be four- to seven hours before she was found. She had three- to four blows to the head and bruises on her hands, arms and shoulder according to Brown County Coroner Earl Piper. The bruises may be defensive wounds.

She was fully dressed when investigators found her, wearing pants, a long-sleeved blouse and lace-up tennis shoes. There was no sign of sexual assault.

Coroner Piper also conducted full toxicology tests, but those results will take 10-14 days.

Police are still working to determine what weapon was used against her.

The Bloomington Police Department had taken a missing persons report regarding Wilson earlier Friday afternoon. Students posted pictures of the missing Fishers native online, hoping someone would find her alive.

Wilson is a 2011 graduate of Hamilton Southeastern High School.

The investigation led detectives to arrest 49-year-old Daniel E. Messel of Bloomington. He now faces a preliminary charge of murder.

Students on campus where shocked to find out the developments Friday.

"It's terrifying. You don't know who you're going to meet at night coming home and you don't know who to trust. It's really scary," said IU student Katie Russell.

"I definitely think it's important to walk home with someone. Just to make sure. I know she was probably by herself," added IU student Jamie McCrocklin.

IU Bloomington officials released a statement Friday night, saying, "The entire IU Bloomington community mourns the tragic death of Hannah Wilson. Our deepest sympathies go out to Hannah's family and friends during this unspeakably sad time."

Wilson was a member of the Gamma Phi Beta sorority. The sorority issued a statement Saturday, in which International President Krista Davis said, "Gamma Phi Beta was heartbroken to learn of the death of Hannah Wilson (Indiana, 2015) on Friday. Hannah was a senior at Indiana University. The entire Gamma Phi Beta family mourns the tragic loss of Hannah. She was a sister, friend and cherished member who will be genuinely missed. Our thoughts and prayers are with Hannah's friends, family and the women of Beta Phi Chapter."

The statement went on to say that Gamma Phi Beta members are being offered university counseling services and support from sorority volunteers.

The sorority requested privacy for the IU chapter. Condolence letters are being accepted at Beta Phi Chapter of Gamma Phi Beta, 12737 E. Euclid Dr., Centennial, CO 80111.

Her closest friends in Bloomington are dealing with the loss in what would normally be a weekend of celebrations with the Little 500. One friend told Eyewitness News, "I can't even stop crying. I keep expecting her to text me back or to wake up and this all be a horrible nightmare."

Support is coming in from all across the state. An Indiana State University student tweeted, "We might not wear the same letters or go to the same school, but my heart is going out to the ladies of Gamma Phi Beta tonight."

Purdue Athletics tweeted, "Thoughts & prayers to our counterparts at IU tonight after losing one of their own in a senseless tragedy. #RIPHannahWilson."

The Monroe County Prosecutor's Office along with the Brown County Prosecutor and the Brown County Coroner are also involved in the investigation that continues. We expect to learn more information about how Messel came into contact with Wilson.

Meanwhile, Wilson's hometown came together Saturday to share their memories of her. Her younger sister was part of a community balloon release at Indiana Elite in Noblesville where Wilson was a cheerleader for more than 10 years.

"She was so good at cheerleading," said Abby King, a friend of Wilson's. "She was so good. Everyone wanted to be Hannah Wilson. Everyone wanted to have her tumbling, everyone wanted to have her smile, her laugh... She just-- She had it going on."

Wilson's former teammates say they'll take extra safety precautions because of her death. They also plan to raise awareness on their own college campuses.