One student was injured and another student was facing an attempted murder charge after a stabbing took place on the campus of Elsie Allen High School in Santa Rosa Tuesday afternoon, police said.Officers told CBS News Bay Area that a 911 call came in at 2:58 p.

Their sudden passing has prompted an outpouring of grief and raised urgent concerns about the dangers of fentanyl-laced drugs. As investigators work to piece together what happened, here’s what we know so far.

A stabbing in a classroom at a high school in Santa Rosa sent the school in lockdown after one student turned a knife on another. One student was arrested and the other had to undergo surgery for their injuries,