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: Ahmed Aminamin El-Mofty fired at a Harrisburg police officer on Friday afternoon and later at a state trooper  wounding her before pursuing  her  Dauphin County District Attorney Ed Marsico  said.
"He fired several shots at a Capitol police officer and at a Pennsylvania state police trooper in marked vehicles "  Marsico  told reporters  flanked by state police  Capitol police and FBI officials.
The gunfire began shortly after 4 p.m. Friday  when the man fired several shots at a state Capitol officer in downtown Harrisburg  striking his car several times and sending one shot "that went very close to hitting him "  Marsico  said. About 20 or 30 minutes later  he fired several shots at the state trooper  striking her with one of those shots.
The trooper is "doing well " is in good condition and is expected to make a full recovery   Marsico  said.
"He approached them with two handguns ... firing many shots at those police officers " and the officers returned fire  killing him   Marsico  said.
El-Mofty had ties to the Middle East and recently traveled there  but the motive for the attack was unknown   Marsico  said.
 Marsico  asked for information from the public about the man  who also had ties to the city and  its  western suburbs across the Susquehanna River.  He  declined to comment on whether the man was known to police.
"That's not  his  behavior at all " said Soweilam  co-owner of a Halal store in Camp Hill. "That's not  him . I still don't believe it."

A: Ed Marsico
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Q: Ben Zobrist? Kyle Schwarber? Kris Bryant? Anthony Rizzo? The Cubs donât seem worried  as they scored 822 runs last season despite Schwarberâs struggles  eventually dropping him from that spot. Assuming they donât acquire a leadoff specialist  theyâll likely rely on a combination of players seeking to provide the production Dexter Fowler supplied in 2016.
The Cubs had minus-9 defensive runs saved at that position last year. Without a strikeout-heavy rotation  defense takes on a greater role. Schwarber has slimmed down to help his agility. Ian Happ has been prone to taking curious routes to the ball.  Ben Zobrist  isnât fast  but  he âs dependable.
 Zobrist  turns 37 on May 26  and  he  played in only 128 games in 2017 because of wrist and back injuries. Manager Joe Maddon faces the delicate balance of getting  Zobrist  ready without taxing  him . Happ is lined up to receive more playing time to preserve Zobristâs health.
Cubs' Ben Zobrist swinging for a rebound after injury-plagued season Â»

A: Ben Zobrist
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Q: Eli Wheatley and Christian Guardino are among a growing number of patients whose lives are apparently being saved or radically improved by gene therapy.
 Guardino  was diagnosed with a different condition â Leber's congenital amaurosis  a disease of the eye's retina â when  he  was born. The disorder isn't fatal. But it was destroying his vision.
"I wouldn't be able to walk around outside on my own " says  Guardino . During the day   he  says  the world looked "incredibly dark" and blurry. "It was sort of like watching your world fade away."
Enlarge this image toggle caption Courtesy of Beth Guardino Courtesy of  Beth Guardino 
Now  Guardino  can see things  he 'd only dreamed about.
After the gene therapy treatment   he  says  "I was able to see things for the first time â like the moon. I was able to see stars for the first time â fireworks â all these amazing things that I've never been able to see before."

A:
Christian Guardino
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