GREENVILLE, S.C. – Police have no suspects or motives in the strangulation death of a Clemson University student.

Tiffany Marie Souers, 20, was killed about 1:30 a.m. Friday, Clemson police Capt. Robert Griffin said. Her body was found by her former roommate about 12 hours later.

Griffin said Souers was strangled with a bikini top, but her apartment showed no signs of struggle or forced entry.

The junior civil engineering student was taking summer school classes so she could graduate early, her mother told The Greenville News on Sunday.

“She was very ambitious,” Bren Souers said by telephone from her home in Ladue, Mo., a suburb of St. Louis.

The oldest of three children, Tiffany Souers graduated from Villa Duchesne High in Frontenac, Mo., in 2004.

Her mother said Tiffany knew Clemson was the school for her on her first visit.

After getting an undergraduate degree, Tiffany Souers had planned to pursue a graduate degree in civil engineering.

Her mother said she found time to help others as well.

She was helping an Easley charity develop its bylaws and was planning to do an internship in Denver in July.

She also had passed on a trip to Hilton Head Island on spring break to go home to visit her brother who had been in a car wreck. “She was so supportive and strong,” Bren Souers said. “She was a rock for all of us.”

Friends at the same apartment complex say they are shaken by the young woman’s death.

Griffin couldn’t say if Souers was targeted or if she was selected at random. However, people should go about their daily lives as they normally would, he said.

Erik Howard, a Clemson senior who lived above Souers, said he was going to stay with a friend in Jacksonville, Fla.

“The more people they go through and the more people they clear, the more random it gets,” he said.