Lincoln, Neb.-- It's a sight no parent wants to see - police cruisers and flashing lights outside their child's school.
One teacher, and parent, vividly remembers the images and feelings tragedies like Columbine and Newtown delivered.
Chris Maly is the English department chair at Lincoln High School in Lincoln, Neb. He's taught there for the last 13 years.
"It's a real wake up to building safety," Maly said, "and what can be put in place.
"And, unfortunately, we're constantly reminded of possible volatile moments we have to be prepared for."
Maly said Lincoln High School has seen seismic changes in the way he and other instructors have adapted to these devastating events.
Now, schools put significantly more effort in talking to students, identifying students that may be struggling and getting them the help they need.
Tracking grades, and attendance, are just a couple of the ways staff are able to follow up on a student.
But, he also said, there has to be an healthy relationship between teacher and student.
"I find that when students understand that you will respect them," Maly said, "and that respect is reciprocated, I think that opens a lot of doors."
Maly said all teachers are trained on how to handle potentially life threatening situation in the school environment.
But, where Lincoln has really grown, is the ability to identify and work with students in trouble.
"I think that that discourse about safety in schools is imperative," Maly said, "and the need to keep staff and students safe in these buildings is really of great importance.
"Lincoln needs to continue to work towards providing that."