A Yale lab technician was arrested and charged with murder Thursday morning in the killing of Annie Le, the grad student whose body was found in the basement wall of a university building after she was strangled, authorities said.

Raymond Clark III was taken into custody at about 8:10 a.m. ET at a Super 8 motel in Cromwell, Connecticut, according to New Heaven police. The 24-year-old had spent the night there after being released Wednesday following his submission to DNA testing.

Police matched DNA from Clark to evidence found at the crime scene on the university where the medical examiner said Le was suffocated.

Clark and Le worked in the same building, but little beyond that was known about whether there was any connection or relationship between them.

Le, a pharmacology student, was last seen alive on September 8.