Chico library shooting suspect Bradley Scott Sayer was allegedly influenced by the 1999 Columbine massacre, officials say. He killed two and was arrested.

Two people were killed and a child was injured in a shooting inside a library in Chico on Monday, officials said.

Authorities said the two adult victims killed did not appear to know the suspect, identified as 18-year-old Bradley Scott Sayer, before Monday's attack.

An 18-year-old suspect has been arrested after a shooting at a library in Northern California left two people dead, Chico police said Tuesday, adding that his motivation "appears to be founded in a ...

Officers responded to calls reporting a shooting inside a public library. On one 911 call, screams and gunshots could be heard, police said.

FBI: Library Shooting Suspect Had Columbine Obsession ...

The mass shooting at Columbine High School on Aug. 20, 1999, became the largest school shooting in history at the time.

Add Yahoo as a preferred source to see more of our stories on Google. Columbine school shooting survivor Cindy Maudsley shares the freshman backpack she was using the day of the tragedy. (Courtesy ...

MEXICO CITY — The gunman who opened fire on tourists at Mexico’s iconic Teotihuacan pyramids carried materials that were apparently related to the 1999 shooting at Columbine High School, authorities ...

When April 20 approaches every year, Cindy Maudsley can physically sense it. "It's like my body keeps score," the mom of five tells TODAY.com about her reaction to the anniversary of the mass shooting ...