Former President Donald Trump must answer questions under oath in New York Attorney General Letitia James' civil investigation into his business practices, a state appeals court ruled Thursday.

The teen, who was shot in the back by a police officer, was unarmed and had his arms raised to surrender, according to a lawsuit. The bullet severely damaged part of the seventh-grader's spine.

The amount of resources devoted to studying gun violence is paltry compared to its public health impact. Still, the evidence shows certain policies might help prevent mass shootings.

The school district in Buffalo, N.Y., announced Wednesday it would keep all school doors locked during the school day, and bar all unannounced visits to its buildings, including by students' parents.