Given a document, find the main entity about whom the author is writing. Write the full name if mentioned in the text. Note that URLs in the text have been replaced with [Link].

Q: “Staff are working at a pace that is unheard of (in trade negotiations) ... and any suggestion that we’re not operating beyond a normal pace is just flat wrong ” U.S. trade envoy Robert Lighthizer told reporters.
 Lighthizer  said Canada had “mentioned” the U.S. ruling during talks on Wednesday.
Asked whether the dispute could affect NAFTA talks   Lighthizer  told reporters: “I‘m not saying it doesn’t have an effect on relationships  it does  but not on this negotiation.”
 Lighthizer  said the United States would “hopefully” present draft text by the next round on the thorny issue of rules of origin  which outlines how much of a product needs to originate in a NAFTA country  and on a dispute settlement mechanism.
 Lighthizer  said the U.S. decision on Bombardier still had several stages to go through before it was finalized.
“There are several more stages  we don’t even know whether it is going to be successful  and in addition there are off-ramps in the litigation ”  he  said. “It’s too early to tell.”
 Freeland  has suggested that Canada could walk away from the NAFTA talks over the so-called Chapter 19 dispute mechanism  under which binational panels make binding decisions on complaints about illegal subsidies and dumping. The United States has frequently lost such cases.

A: Robert Lighthizer
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Q: Marilou Danley was in the Philippines visiting family when  Stephen Paddock  killed 58 people and injured another 557 in the Oct. 1 attack. She made changes to her Facebook account's privacy and personal settings at 12:30 a.m.  about 2 1/2 hours after the first volley of bullets rained down on people attending a music festival on the Las Vegas strip. The first calls about the shooting rolled in at 10:08 p.m.  according to police.
But it wasn't until nearly an hour after that â 3:30 a.m. â that police released  Paddock 's name to the public.
As the New York Post reports  the documents suggest Danley acted quickly after the shooting to conceal her relationship with  Paddock .
Danley  who also lived with  Paddock   has been adamant that she knew nothing about his plans to conduct the attack.
The documents lay out what investigators had learned about  Paddock  in the days following the shooting. But they do not provide a motive for what prompted the 64-year-old professional gambler to murder and terrorize concertgoers from 32nd floor of the Mandalay Bay hotel before killing himself.
One affidavit includes email exchanges between centralpark1@live.com  a Microsoft account that FBI authorities believe belonged to  Paddock   and centralpark4804@gmail.com. (It is unclear if the FBI knows who is responsible for the latter account.) The messages were sent on July 6  2017.
The exchanges took place nearly three months before the onslaught. And CNN reports that "investigators at the time of the filing had been unable to determine if  Paddock  was sending emails between two accounts both belonging to  himself   or was communicating with someone else."
In addition to the two email addresses  the FBI requested and was granted warrants to search  Paddock  and Danley's Facebook and Instagram accounts.  Paddock 's Amazon account is also under investigation  as well as a locked phone that was found in his room at the Mandalay Bay.
The FBI has said repeatedly that  Paddock  acted alone. Danley has not been charged with a crime. She has been questioned by investigators several times.

A: Stephen Paddock
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Q: Speaking earlier about progress towards the merger   Essilor’s Chief Operating Officer Laurent Vacherot  said: “We are serene ” repeating that the deal was expected to close in the first half of 2018.
Announcing its annual results   Essilor  said  it  was targeting revenue growth of around 4 percent in 2018. Revenues rose 3.1 percent on a like-for-like basis to 7.5 billion euros last year  partly helped by higher sales in North America.
 Vacherot  said Essilor would keep pursuing  its  strategy of bolt-on acquisitions in 2018  particularly in China and India.
Luxottica  which has been restructuring since 2014  forecast on Monday steady growth in sales and profits this year.  Its  shares rose 5.2 percent.

A:
Laurent Vacherot
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