Story highlights The sheriff says the gunman and victims apparently knew each other

Investigators are still looking for the gunman, who has not been identified

(CNN) Authorities are trying to find the person who fatally shot two young men at Grambling State University in northern Louisiana early Wednesday.

One victim was identified as Earl Andrews, 23, a Grambling State University senior from Farmerville, Louisiana, university spokesman Will Sutton said.

The other victim was identified as Monquiarious Caldwell, another 23-year-old from Farmerville. Caldwell was not a student at the university, Sutton said.

They were discovered in a courtyard between two dorm buildings, said Stephen Williams, a spokesman for the Lincoln Parish Sheriff's Office.

"This tragic incident appears to have occurred between persons that knew each other, to some extent at least," Lincoln Parish Sheriff Mike Stone said.

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