OXFORD, Miss. (AP) - The ricin mailed to the president and a U.S. senator is relatively easy to make but generally can't be used to target a large number of people, experts say.
Police arrested Dzhokhar Tsarnaev Friday night after finding him hiding in a boat parked behind a home in Watertown, the Boston suburb authorities shut down to conduct house-by-house searches. A flurry of gunfire broke out around the time officials lifted a shelter-in-place order that effectively shut down Boston and a number of surrounding suburbs. Tsarnaev, identified by authorities as Suspect No. 2, was on the loose for almost 20 hours after his brother, Tamerlan, was killed in a getaway attempt.
ARIZ. WOMAN ACCUSED OF ABUSING NIECE PLEADS GUILTY: PHOENIX (AP) - The legal guardian of a 10-year-old Arizona girl who died in 2011 after being padlocked in a footlocker by another family member pleaded guilty in the case Friday.
WATERTOWN, Mass. (AP) - A 19-year-old college student wanted in the Boston Marathon bombings was taken into custody Friday evening after a manhunt that left the city virtually paralyzed and his older brother and accomplice dead.
WATERTOWN, Mass. (AP) - A tense night of police activity just days after the Boston Marathon bombings has caused police to converge on a neighborhood outside Boston where they say there were explosives.
WEST, Texas (AP) - Rescuers searched the smoking remnants of a Texas farm town Thursday for survivors of a thunderous fertilizer plant explosion, gingerly checking smashed houses and apartments for anyone still trapped in debris while the community awaited word on the number of dead.
AUSTIN, Texas (AP) - People keep asking Joe Berti if he feels unlucky.
BOSTON (AP) - Plucking a couple of blurry faces in baseball caps out of a swarming crowd, the FBI zeroed in on two suspects in the Boston Marathon bombing and shared surveillance-camera images of them with the world Thursday in hopes the public will help hunt them down.
REVERE, Mass. (AP) - A teenager said he is scared to go outside after he was portrayed on the Internet and on the front page of the New York Post as connected to the Boston Marathon bombings.
WASHINGTON (AP) - Air traffic controller furloughs scheduled to kick in on Sunday could result in flight delays of more than three hours in Atlanta, as well as significant delays in Chicago, Los Angeles and New York-area airports, federal officials said Thursday.
KAUFMAN, Texas (AP) - A former Texas justice of the peace seeking revenge for a theft conviction that ended his judicial career carried out a plot with his wife to kill the men who prosecuted him, authorities said Thursday.
CINCINNATI (AP) - A popular southwest Ohio air show has canceled plans to stage a re-enactment of the devastating World War II atomic bomb attack on Japan after protests, officials said Thursday.
MONTANA GOV. SIGNS BILL DECRIMINALIZING GAY SEX: HELENA, Mont. (AP) - An obsolete law deeming gay sex as deviant - akin to bestiality - was stricken from Montana code Thursday, prompting gay rights activists to say they hope that full legal equality may be close at hand.
MOUNT PLEASANT, Mich. (AP) - The former minister of a small Michigan congregation was sentenced Thursday to at least 56 years in prison for killing his fiancée's 24-year-old daughter, allegedly to fulfill a fantasy to have sex with a dead body.
BOSTON (AP) - The FBI released photos and video Thursday of two suspects in the Boston Marathon bombing and asked for the public's help in identifying them, zeroing in on the two men on surveillance-camera footage less than three days after the deadly attack.
NEW YORK (AP) - The quarantine against possible Ebola exposure ends this week for Dr. Nancy Snyderman, but the troubles clearly aren't over for NBC News' chief medical editor.
DETROIT (AP) - The U.S. government issued an urgent plea to more than 4.7 million people to get the air bags in their cars fixed, amid concern that a defect in the devices can possibly kill or injure the driver or passengers.
DETROIT (AP) - United Nations human rights experts described Detroit's mass water shut-offs as "a man-made perfect storm" Monday and called on city officials to restore water to those unable to pay, including those with disabilities or chronic illnesses.
KANSAS CITY, Mo. (AP) - A 6-year-old girl was killed during a drive-by shooting while shopping for bubblegum with her father at a convenience store in Kansas City, according to police, who are vowing to find those responsible for her death.
WAILUKU, Hawaii (AP) - A man surfing with his three young sons used his fist and surfboard to fend off a shark attack in waters off Maui that were rough and murky from a hurricane that churned passed Hawaii over the weekend.
COLORADO PROPOSES EDIBLE POT BAN, THEN RETREATS: DENVER (AP) - Colorado health authorities suggested banning many forms of edible marijuana, including brownies and cookies, then whipsawed away from the suggestion Monday after it went public.
OSIJEK, Croatia (AP) - Dozens of suspected Nazi war criminals and SS guards collected millions of dollars in U.S. Social Security benefits after being forced out of the United States, an Associated Press investigation has found.
WASHINGTON (AP) - The joke is on Jay Leno this weekend as comedians salute the former "Tonight Show" host, who will receive the nation's top humor prize.
ATLANTA (AP) - Revised guidance for health care workers treating Ebola patients will include using protective gear "with no skin showing," a top federal health official said Sunday, and the Pentagon announced it was forming a team to assist medical staff in the U.S., if needed.
CHARLOTTESVILLE, Va. (AP) - After finding remains that could be University of Virginia student Hannah Graham, authorities interviewed nearby residents and picked through leaves on the side of a sparsely populated highway, searching for any clues or evidence.
CONCORD, N.H. (AP) - Keene State College students quickly cleaned up from a chaotic weekend on Sunday after violent parties near the city's annual pumpkin festival led to destruction, dozens of arrests and multiple injuries.
CALABASAS (AP) - The customized Captain America chopper Peter Fonda rode in "Easy Rider" is up for auction this weekend in California.
LONDON (AP) - The World Health Organization bungled efforts to halt the spread of Ebola in West Africa, an internal report revealed Friday, as President Barack Obama named a trusted political adviser to take control of America's frenzied response to the epidemic.
RENO, Nev. (AP) - Stan Thomas tried to persuade a Northern California tech company to move here but it didn't want to.
SALT LAKE CITY (AP) - A risque video shot in conservative Utah featuring bikini-clad women firing high-powered weapons and riding in tanks for a pinup calendar has raised the ire of a pair of law enforcement agencies who have found some of their officers were in the film.