LAS VEGAS

Plane pushed past limits

A plane that crashed into spectators at an air race in Reno last year bore modifications that weakened its structure and showed evidence that it was flown beyond its limits, investigators said Monday. The National Transportation Safety Board deemed the failure of a tail structure to be the probable cause of the crash of the souped-up World War II-era P-51 Mustang fighter that killed pilot Jimmy Leeward and 10 people on the ground.

PERRY HALL, Md.

Student opens fire

A 15-year-old student opened fire on the first day of classes Monday at a Baltimore County high school, getting off two shots and wounding a classmate before being rushed by teachers, authorities said. Investigators do not believe the victim, a 17-year-old male, was targeted by the shooter, a 15-year-old who is also a student at Perry Hall High School, Baltimore County police Chief James Johnson said.

SAN DIEGO

Archbishop-elect arrested

The Roman Catholic archbishop-elect of San Francisco apologized Monday for his weekend arrest on suspicion of drunken driving, behavior that he termed an “error in judgment” and which legal experts said was unlikely to derail his promotion. The Rev. Salvatore Cordileone said in a statement that he was driving home from a dinner with friends in San Diego with his mother early Saturday when he was pulled over at a DUI checkpoint near San Diego State University.

WASHINGTON

Ancient insects found

Scientists have found three well preserved ancient insects frozen in amber — and time — in what is Earth’s oldest bug trap. The discoveries of amber-encased insects in Italy may sound like something out of Jurassic Park but these bugs are even older than that. They are about 230 million years old, which puts them in the Triassic time period, and about 100 million years older than what had been the previously known oldest critters trapped in fossilized tree resin, or amber.

Compiled from wire reports.