Kebreau, who has worked for the district since 2004, has never been suspended before but has received a number of warnings about various workplace issues. In 2008, he was advised not to have students in his classroom unsupervised. In 2011, he received a letter of reprimand for unspecified “inappropriate conduct.” In 2012 and 2015, he was warned about making inappropriate comments to students, according to a district report.