The men also had illegal firearms, tools to modify pistols and narcotics in their possession.

Chaos erupted at the Siam Paragon mall in Bangkok close to peak hours, with hundreds fleeing as gunshots rang out.

Police say the teenager had been receiving psychiatric treatment, but had skipped his prescribed medicine on the day of the incident.

Kevin Eduardo Cataneo Salazar was arrested after an intensive manhunt and a four-hour standoff at a home in the high desert suburb of Palmdale.

Deputy Ryan Clinkunbroomer was shot as he sat in his patrol car at a red light just outside a sheriff's station in the city of Palmdale, about 90km northeast of Los Angeles.

Authorities believe the shooter acted alone, and that before the shooting he had authored 'several manifestos' for media, his parents and law enforcement detailing his hatred for black people.

Villavicencio, who was gunned down in Quito, built a name for himself as an investigative journalist rooting out graft before he became a lawmaker.

Police have said the boy took the handgun from home in his backpack and fired a single shot through Abby Zwerner's hand and chest.

The sentence will run concurrently with the 3-1/2 years Thao previously received on a federal conviction of violating Floyd's civil rights, reports say.

The shooting occurred in the Como section of Fort Worth in Texas, hours after the end of the neighbourhood's annual ComoFest.

America has now endured 339 mass shootings so far this year, according to the Gun Violence Archive.

Authorities offered no motive for the gun violence, which erupted in a courtyard of grass and pavement between a pair of two-story rowhouse structures in South Baltimore's Brooklyn Homes community.