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: With the Nats and their latest new manager back in the news  longtime play-by-play voice  Charlie Slowes  had occasion this week to reminisce about the history of Nationals managers. Which led  him  to one of  his  favorite stories about a Nats manager  one I had never heard but immediately loved.
“I guess he’d just got into his car  he’s listening to the radio or something ”  Slowes  went on. “And he rolls his window down — and he was still in full uniform! He goes  ‘I’ve got to be back so early tomorrow  why even bother changing?’
“So my thought was — as he rolls his window up and he pulls away — he’s living in an apartment building in D.C. ”  Slowes  said. “And I’m just thinking  he’s got to go in the garage and go up to his apartment. He’s doing that in full uniform? If you lived in the apartment  you’d go  ‘Hey  who’s the guy in the Frank Robinson uniform?’ ”
“I couldn’t believe that he did it  and to this day nobody else knows that story ”  Slowes  said. “I’ve told  it  to a couple people  but nobody else saw  it   so  it ’s not believable to anybody else.” But  Slowes  called  it  “one of my great memories” from  his  time with the Nats.
Meanwhile   Slowes  — who also has a history with the Tampa Bay Rays — has known new skipper Dave Martinez for 20 years  and has spoken with him frequently about his desire to get a big league managerial job.
“I’ve talked to him every year ”  Slowes  said. “I talked to him during the [Nats-Cubs] playoff series. Each year I’d see him back in Florida — because we live near each other — and he’s say  ‘I’m so ready  I’m ready to have my own team  I’m ready to manage  that’s what I want to do.’ So I knew that he interviewed when Matt Williams was hired; he was the runner-up. I knew he was considered after Matt Williams  but they decided to go with the experienced manager. I knew he interviewed for other jobs.”

A: Charlie Slowes
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Q: Prince Harry  refused to take part in the Royal Familyâs traditional Boxing Day shoot on Tuesday so as not to upset  his  âpart-veganâ activist fiancÃ©e  according to reports.
Gamekeepers at the Sandringham estate  where  Harry  first joined  his  family at the annual shoot more than 20 years ago  were âstunnedâ by the princeâs decision  according to The Sun.
â Harry  loves it and has always been out there on  Boxing Day . But if it means breaking with long-standing royal traditions to avoid upsetting her  so be it. Itâs fair to say that there are some pretty stunned faces around here.â
A friend of  Harryâs  said: âIf Meghanâs not comfortable with  him  doing the shoot   he  wouldnât want to upset her.â
On Wednesday  Prince Harry and the BBC were criticised for producing a politicised âinterviewâ with Barack Obama in which the former president launched a thinly-veiled attack on his successor Donald J. Trump.

A: Harry
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Q: David Berkowitz  the notorious "Son of Sam" serial killer   has been hospitalized at the Albany Medical Center Hospital  where  he  will undergo an emergency heart surgery  The Times Union noted.
 Berkowitz  has been in prison since 1978  after  he  went on a killing spree with a .44 caliber revolver that ultimately left six dead and seven others wounded between 1976 and 1977  The Times Union said.
According to a statement from the state Department of Corrections and Community Supervision  " Berkowitz  has been transferred to an outside hospital and remains in the custody of the Shawangunk Correctional Facility."
During  his  killing rampage   Berkowitz  targeted young women and couples sitting in cars  The Daily Mail reported.
 He  left letters behind at two murder scenes in which  he  referred to  himself  as the "Son of Sam " a reference to a neighbor  he  claimed was a demon. In  his  letters   Berkowitz  said Sam's dog had been giving him orders to kill.
Upon his arrest  he was sentenced to 25 years in prison for each of the six murders and  during his time behind bars   Berkowitz  became a reborn Christian.
"There was a battle going on inside  me  " he said.
 Berkowitz  said  he  thought  he  was doing something to "appease the devil" by murdering  his  victims.

A:
David Berkowitz
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