(Reuters) – A at Central Michigan University suspected shooting to death his inside a campus dormitory during a domestic dispute was arrested on Saturday, the school said, after a daylong manhunt.

The suspect was seen by a bystander on a train passing the north end campus in Mount Pleasant, about 125 miles (0 km) northwest Detroit, shortly after midnight taken into custody incident, Heather Smith, a university spokeswoman, in a statement.

The suspect was identified as James Eric Davis Jr., 19, after the two victims were found inside a residence hall at the university, police said. “It was an isolated incident, but we had two people that were killed in a residence facility. That’s traumatic,” Michigan Governor Rick Snyder at a conference hours after the Friday morning shooting.

The shooting led authorities to order a lockdown the campus, which has more than ,000 students, police also warned Mount Pleasant to be on guard.

Police in helicopters patrol cars spent Friday scouring the locked down campus the area for the suspect, local media reported. Police escorted people leaving the campus, as university events were canceled Saturday classes were called off, university officials in a statement.

Davis had been taken to a local hospital on Thursday night after an apparent overdose or“bad reaction to drugs,” Klaus told reporters. The two victims were James Davis Sr. Diva Davis, 47, university officials on Twitter.

James Davis Sr. was a police officer in Bellwood, Illinois, a Chicago suburb, Emanuel Chris Welch, an state lawmaker, in a post on Twitter. The incident came just two weeks after 17 students educators were killed by a 19-year-old gunman with an assault-style rifle at a Florida high school.

Reporting by Brendan O’Brien in Milwaukee; Editing by Sam Holmes