A criminal complaint filed in Middle District Court of Georgia Monday reveals some new information about investigation into University professor George Zinkhan, sought for the murder of three people Saturday afternoon.

FBI Special Agent Gregory McClendon, who is assigned to the FBI office in Macon, relayed Georgia Bureau of Investigation Agent Rebecca Shaw was told Zinkhan had scheduled a trip to Amsterdam and that he travels there several times a year. He is also close with his brother in North Carolina and recently visited his mother in Baltimore. Shaw also said Zinkhan “has connections to the Netherlands and that he is close to his other children in Texas. Zinkhan has made no contact with these children. He also has extended family in Maryland and Utah.”

Delta Airlines confirmed Zinkhan has a ticket to leave for Amsterdam on May 2. The statement says he may change the date and attempt to flee. The statement goes on to say Zinkhan recently got a Verizon cell phone because he needed a new one that would work in the Netherlands.

Since the shooting Saturday, there has been no activity on his cell phones and he has had no contact with “any known family, associates or students,” according to the court document.