City officials say a radiator malfunctioned, killing a 1-year-old and a 3-year-old.
Syrian military video shows the continuing campaign to capture the last remaining rebel-held areas of eastern Aleppo.
A 14-year-old boy was in critical condition after the shooting at Reno's Hug High School, which was witnessed by more than 40 students.
Minquell Kennedy Lembrick, 32, escaped after the shooting near Georgia Southwestern State University on Wednesday morning.
Nearly 40 percent of the world's giraffe population has declined in the last three decades, according to conservationists.