Investigators with the Snohomish County Multiple Agency Response Team have released a few additional details in the investigation of last Friday’s shooting incident at Marysville Pilchuck High School.

The only pre-planning of the event that detectives are able to confirm is that the shooter had arranged for a meeting of friends during lunch in the cafeteria. A witness confirms that the five victims were seated at the table when the shooter opened fire, striking the victims before turning the gun on himself.

It was also confirmed that the handgun, a .40 caliber Berretta, was purchased legally, registered, and owned by a family member of the shooter. It is still under investigation how the shooter obtained the weapon prior to Friday’s incident.

Detectives have also confirmed that the first year teacher attributed with confronting the shooter did not, in fact, have physical contact with the shooter during the incident.

The next steps of the investigation involve gathering and reviewing hundreds witness statements, continuing to conduct in-person interviews, gathering evidence, tracking down additional witnesses and compiling a comprehensive report.

The investigation is expected to last several months, due to the complexity of the incident.