They'll be looking at lessons learned from those who've experienced school violence firsthand, including last fall's, hostage situation and shootings at Platte Canyon High.

Thursday's conference will address indicators of violence by grade level and how best to deal with threats when they come up.

Retired FBI agent and school safety specialist Vinnie Wincellowicz is helping to organize it. Lt. Governor Barbara O'Brien is also part of the effort, especially prevention efforts that she believes should start in preschool.

They'll also be highlighting the increased use of a hotline for students to report threats anonymously. It's called Safe 2 Tell. That number is 1-877-542-7233. The hotline is available 24 hours a day, seven days a week.

For more details check http://www.preventingschoolviolence.org/