Police searching for missing teenager Alice Gross found a body in the River Brent on Tuesday night.
Another incident has come to light for which President Obama's Secret Service protection team is facing criticism.
A private security agent who had a gun shared an elevator with Obama in Atlanta on September 16, three days before the White House intrusion, a Secret Service official said.
The man, who was operating an elevator carrying Obama and his Secret Service detail during the president's visit to the US Centers for Disease Control and Prevention, aroused suspicion when he began taking pictures and video of Obama on his phone, the official said.
During questioning, the man's supervisor asked for his gun, startling Secret Service agents.
Under agency rules, people with access to the president need special clearance to carry guns.
The Washington Post, which along with the Washington Examiner, first reported the incident, said the man had three convictions for assault and battery.
A man who flew from Liberia to Texas has become the first patient infected with the deadly Ebola virus to be diagnosed in the United States, health officials said.
The patient sought treatment six days after arriving in Texas on September 20th, Dr. Thomas Frieden, director of the US Centers for Disease Control and Prevention, told reporters.
He was admitted two days later to an isolation room at Texas Health Presbyterian Hospital in Dallas.
On Tuesday, Frieden and other health authorities said they were taking every step possible to ensure the virus did not spread widely.
A police cordon was this morning in place outside The Fox pub on Green Lane, a road leading to the River Brent tow path.
The cordon is around 600m from where Alice Gross was last seen.
David Cameron is trusted by many more people than Ed Miliband to take the right decisions on how to combat Islamic State (IS), according to a new poll.
The ComRes survey for The Independent found that 45% of the public trust the Prime Minister to make the right decisions on tackling the jihadist group, but only 28% trust the Labour leader to do so.
The poll suggested that almost half (48%) believe that taking part in military action against IS will make Britain safer in the long term, while 42% disagree.
The poll gave Labour a six-point lead over the Conservatives on 35% (unchanged since a similar survey last month), compared to 29% for Tories (up one point), Ukip on 15% (down two), and the Liberal Democrats on 10% (up one).