The Colorado Department of Education says it mistakenly left the Arapahoe High School shooting out of an official accounting of disciplinary action.
Parents and at least one state lawmaker were upset by the omission of the December 2013 attack. The department had provided an early copy of the disciplinary report to The Denver Post and Channel 7.
"It seems to me that it’s something that we need to clarify further, so that parents and students have a clearer picture of what’s going on in the schools that they’re attending," Lawrence says.
The shooting claimed the life of 17-year-old Claire Davis. The gunman, 18-year-old Karl Pierson, killed himself shortly after.
The school violence reporting law was created after 1999's Columbine High School shootings.
The Associated Press contributed to this report.
