We looked at stories from across America in the year since the shootings at Sandy Hook School to try to illustrate the scale of the problem.
Authorities today sought public help to find a "person of interest" whose roommate's death in Laguna Hills is being investigated as a homicide.
The body of a man was found in an apartment on Wednesday.
The physician who treated Kelly Thomas, who died following a confrontation with Fullerton Police, testified Thomas died as a result of the conflict with officers.
A small plane with two people on board that made an emergency landing on a toll road in Mission Viejo Sunday, authorities said.
An FBI expert testified that two former Fullerton police officers failed to follow proper procedures in their attempts to subdue Kelly Thomas who died after his run-in with officers.
The truck driver, who was transporting electronics from San Diego to a Tustin business, authorities said.
Opening statements are made Monday. Defense will argue the beating was not responsible for Thomas' death following a confrontation with Fullerton Police.
An independent coroner is still likely to get an answer, though.
Accused serial killer is believed to have ingested Ajax cleanser.
The boys were recovered unharmed at the San Ysidro border crossing in San Diego Saturday, authorities said.
An official cause of death has not been released, but a prosecutor suggested Itzcoatl Ocampo died from ingesting the cleanser.
Itzcoatl Ocampo, accused of preying on the Orange County homeless in 2011, died 18 hours after being discovered sick in his jail cell.
Gregory Thomas Salyer, of Independence, Ky., pleaded to a charge of placing a destructive device in checked baggage, receiving stolen property and carryi
The despondent woman led authorities from Dana Point out toward the San Diego County line.
A jogger spotted the burned vehicle at the side of the shallow creek near Harvard Avenue and Michelson Drive.
Incident occurred Sunday morning in Laguna Hills.
The crash was on Paseo De Valencia at Laguna Hills Drive.
A one-time member of Afghanistan's national basketball team was convicted of attempted murder and aggravated assault.
Some 200 cases may be affected by mistakes made by the Orange County Crime Lab, which produced incorrect blood-alcohol level readings, authorities said.
A 31-year-old man injured in an explosion in a Dana Point garage may have sparking the blast in a pot-extracting lab, a sheriff's lieutenant said today.
The father's cell phone "pinged" in San Diego last night.
Santa Ana Police said Francisco Javier Montano, of Irvine was behind the wheel of an SUV when his girlfriend either jumped or was pushed out with their infant daughter.
The explosion threw a door across an alley and blew out the windows of apartments in a neighboring building, he said.
The alleged shooter Paul Anthony Ciancia remains hospitalized with four gunshot wounds.
"It would be premature to comment on a motivation at this time and joint investigators have neither ruled out terrorism, nor ruled it in," according to the FBI.
The dogs were caught in a fire that broke out in a Laguna Woods home.
Fourth District Court of Appeal justices have rejected an appeal by an South Orange County attorney who challenged state election results on the presidential race.
Two Laguna Niguel residents and an Irvine resident are charged with fraud by wire in connection with a scheme against a banks.
A gold elephant and five others went missing Tuesday morning.
All but one southbound lane was closed to accommodate emergency crews, officials said.
Beware this scam that has people in Carson on the hook for being Good Samaritans.
A bystander helped extinguish the flaming squad car, injuring himself in the process.
James Corr ran over a pregnant woman's foot while stealing her SUV.
James Christopher Corr was convicted of stealing an Aliso Viejo woman's vehicle while her child was inside.
Irvine, Laguna Niguel, Mission Viejo, Yorba Linda, Orange and San Clemente all ranked among the 20 safest large cities in California in 2012.
UPDATED: It's Todd Sousa's second conviction. He had owned a Laguna Hills swim school.
The sea lion had fishing line wrapped tightly around its neck, and had badly infected wounds, according to Orange County Sheriff's Department officials.