Brian Golsby (pictured), 29, was arrested Saturday on charges of aggravated murder, kidnapping and aggravated robbery, Grove City police said

A convicted sex offender released from prison in November has been charged in the shooting death of a 21-year-old Ohio State University student, two days after she was shot dead and her nude body was found near a public park.

Brian Golsby, 29, was arrested Saturday on charges of aggravated murder, kidnapping and aggravated robbery in Reagan Tokes' death, Grove City police said.

Reagan was last seen leaving work at Columbus restaurant Bodega Wednesday night.

Her nude body was found Thursday near the main entrance to Scioto Grove Metro Park, around 15 minutes' drive south of Bodega.

Tokes grew up outside Toledo and was a fourth-year psychology major at Ohio State.

Police said they arrested Golsby after finding Tokes' car near his Columbus residence and matching his DNA with evidence gathered in and around the car.

Golsby pleaded guilty in 2011 to Franklin County robbery and attempted rape charges.

Reagan Tokes (pictured left next to her sister) was last seen leaving work at a Columbus restaurant Wednesday. Her nude body was found Thursday near a park entrance in Grove City

The student (with boyfriend Jake Hadley left and her parents right) had a car, but it is missing. CCTV showed her going toward the car as she left work, but not whether she reached it

Reagan's family has now started a Go Fund Me, hoping to create a scholarship in her name to help a student attend her or his dream school.

He sister Makenzie said in a heartbroken tweet Friday: 'The fact that our teachers from middle school are calling just shows how much of an impression you made on them. Everyone loves you.'

A service for Reagan has been planned at Maumee United Methodist Tuesday and Wednesday.

Her body was found around 100-150 yards from the park's entrance by a passerby, who called police at around 1:10 pm, according to The Columbus Dispatch.

Police said at the time it was unclear whether she was shot there, or if she was killed elsewhere and her body dumped.

However, no shell casings were found in an initial search of the park, an officer said.

On Wednesday Makenzie, told The Tab that the psychology student had been seen approaching her car on security cameras, but it wasn't clear whether she reached the vehicle.

She also said the last message delivered to Reagan's phone was sent at 10:30 pm. There was no reply.

'She was supposed to contact us after her shift last night and did not,' Makenzie said. 'We assumed she went home and slept but we weren’t able to get through her phone this morning and her roommates said she didn’t come home.

'I reached out to her roommates this afternoon to find out they hadn't seen her or heard from her since before her shift last night.'

A service for Reagan (pictured) has been planned at Maumee United Methodist Tuesday and Wednesday. Her family now hopes to create a scholarship in her name

Reagan's friends and sister shared tribute to her online saying how much they loved the student (pictured) and how much her death pained them

Her sister Makenzie tweeted this photo of herself and Reagan as children with their father early Wednesday night, with a message implying that something awful had happened

Her nude body was found Thursday near the main entrance to Scioto Grove Metro Park, around 15 minutes' drive south of Bodega (police are pictured at the scene)

On Thursday evening Makenzie tweeted: 'You hear about these things on the news but you never think it could happen. I love you with all my heart gee gee.'

Later, she tweeted Donald Trump with the message: 'Security is a major issue if my sister was killed leaving her job last night. Please do all you can to keep us safe.'

She wasn't the only one paying tribute to the slain student. Reagan's uncle, Jamie Tokes, previously shared a heartbreaking update on Facebook after the body was found.

'Thank you all for your prayers and support for my beautiful niece/god daughter Reagan Tokes that went missing at OSU last night,' he wrote. 'This afternoon, her body was found.

'Words can't express the pain we are feeling as a family.'

Reagan's friends also spoke of their love for her. Twitter user Maddie wrote: 'I am hearbroken and sick to my stomach. rest in peace Reagan. prayers to the Tokes family. heaven gained an angel.'

A girl named Amber tweeted: 'Rip beautiful, love you lots. this can not be real.'

Steph Fragale, a friend of Reagan's who had tried to get the word out about the missing student on Wednesday, tweeted: 'Absolutely heartbroken.'

And Jordyn Cousino simply said: 'I love you @reaganstokes.'