CHICAGO | A 19-year-old student shot dead his parents Friday morning at the University of Central Michigan campus in the northern United States, the university said. The man has not been arrested yet.

The police began shooting in the morning at the Campbell Hall building at the University of Mount Pleasant, between Chicago and Detroit.

The university then identified the victims as the suspect’s parents, James Eric Davis. They lived in the suburbs of Chicago.

“The dead are not students,” Central Michigan University said in a statement, stating that the police believed the facts could have “originated from a family situation.”

The night before the shooting, the suspect was taken to the hospital after “an overdose or a bad reaction after taking drugs,” said the campus police spokesman at a press conference.

The premises were placed in confinement for several hours, while the police searched for the 19-year-old, who has not yet been arrested. Some 18,000 students attend Central Michigan University’s main campus.

Shootings are common in the United States, where there are as many firearms in circulation as residents.

The debate over the legislation surrounding the constitutional right to be armed in this country was revived by young survivors of the killing that killed 17 people on February 14 in Marjory Stoneman Douglas High School in Florida.

This latest massacre was added to the long list of shootings in schools, including that of Newtown where 26 people died in a primary school in 2012, or that of Virginia Tech on the campus of a university of the United States. east of the country, which had 32 dead in 2007.