The stabbings have brought domestic violence to the forefront for those who knew the Conant high school senior, and volunteers sold purple ribbons symbolizing domestic violence awareness Saturday.
A friend of Laura Engelhardt also ordered rubber bracelets, printed with the words "Stop domestic violence."
The violent death of the student who planned to attend the University of Missouri has inspired hundreds to make donations to help the Engelhardt family.
"It's been extremely difficult.There's definitely been a lull in our hallways, not only by the students but by the faculty as well," said Conant Assistant Principal Jerry Trevino.
"She's just one of those kids who always had kind words to say," said Eric Jacobsen, one of Laura's teachers.
Laura Engelhardt, her father and grandmother were stabbed to death earlier in April. The boyfriend of Laura's sister, Amanda Engelhardt, has been charged with their murders. D'Andre Howard reportedly attacked the family after accusing Amanda of cheating on him.