The Abundant Life Christian School remains a crime scene Thursday as detectives search for a motive in the deadly Monday morning shooting carried out by a student and probe her possible links to a man who – according to an Associated Press report – authorities believe was planning another mass shooting in California.

The victims killed in Monday’s shooting at a small private school in Madison, Wisconsin, have been identified as a caring teacher who “would have done anything” for her students and a 14-year-old freshman who loved reading,