News of the Day From Across the Nation, Sept. 13

Former tennis star James Blake, whose caught-on-camera takedown by a plainclothes New York City police officer prompted apologies from the mayor and police commissioner, said Saturday the officer who wrongly arrested him should be fired.

“I don’t think this person should ever have a badge or a gun again,” Blake, 38, said after surveillance video of the arrest — and details about previous complaints over the officer’s use of force — became public.

The arresting officer, James Frascatore, has been placed on desk duty while internal affairs detectives investigate the matter.

Mayor Eric Garcetti announced Friday the city will lease 160 pure battery electric vehicles, which reduce greenhouse emissions and also make less noise.

Wisconsin Gov. Scott Walker is refocusing his Republican presidential campaign on Iowa and South Carolina, where his early popularity in opinion polls has crumbled, and he has taken the unusual step of canceling major speeches in Michigan and California this week to spend time in those two crucial states.

The founder of a social networking service for nurses used a shotgun to kill his wife and three teenage children before turning the gun on himself, Minnesota police said Saturday after the release of autopsy reports.

Investigators believe Brian Short killed his wife, Karen, and their three teenage children in their Greenwood home, said Mike Siitari, the interim chief of the South Lake Minnetonka’s police department.