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: The Tampa Bay Times reports that  32-year-old Adam Matos  was found guilty Thursday of four counts of murder. The penalty phase starts Monday 
 Matos  could get the death penalty if all 12 jurors vote for that. Otherwise he would be sentenced to life in prison.
Authorities say  Matos  fatally shot Megan Brown and her father  Greg Brown  at their Hudson home in 2014.  He  also fatally beat Margaret Brown and Nick Leonard with a hammer  jurors heard.
 Matos  testified Wednesday  he 'd been suffering from paranoia and committed the slayings in self-defense.
The 4-year-old son of Megan Brown and  Matos  was at the home when the killings occurred.

A: Adam Matos
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Q: We know that  Nikolas Cruz  wasn't hiding a thing about  his  killing rage in the months and even years before the Florida school massacre.
According to the best British newspaper in America  the Daily Mail   Nikolas Cruz  abused his ex and sold knives out of a lunchbox.  He  was disciplined by the school 25 times and finally expelled.
Good Morning America could not pass up an interview with survivor Ariana Lopez. In her circle  everybody knew that  Cruz  was dangerous.  He  didn't bother to hide it. According to  Ms. Lopez  Cruz  was signaling  his  rage and murderous feelings like mad.
Lopez made it clear during her interview that  Cruz 's problematic behavior and mental health issues were on clear display at school. 'He used to sell knives out of his lunch box  which I thought was insane. You can't have knives  this is a school'  said Lopez of  Cruz . 'He would be like  "hey guys  want some knives?"' One of the incidents that led to his being disciplined was a fight in September 2016. Footage of the brawl emerged over the weekend.  Cruz  was suspended for two days as a result of the fight  which was over a former girlfriend.
This changes the picture completely: what the hell were the school counselors and police authorities doing while  Cruz  was signaling murderous intentions? There is an air of looming tragedy over the Florida school killings  and secretly  many people knew or suspected what was to come.
Any competent teacher  administrator  school cop  or counselor should have seen the signs and should have diverted  Cruz  into a protected environment where  he  could be educated and monitored. If  his  friend Ariana knew he was selling knives  so did dozens of other kids  teachers  administrators  and all the rest. No person in authority acted responsibly. They just kicked the can down the road.
There is no mystery about the Nikolas Cruzes of the world. They have been around forever. It's just that they were spotted and taken care of with discipline and  yes  with love and acceptance  whether they deserved it or not. If they acted out  they were punished appropriately  and if they looked dangerous  they were diverted to activities where they could do no harm.
That's what fathering is all about  and that is what the ancient phrase "in loco parentis" means.  Cruz  should have been effectively disciplined from childhood onward  but  he  was allowed to grow into a raging menace  recognized by other students and by numerous adults.

A: Nikolas Cruzes
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Q: FILE PHOTO - U.S. Representative Tim Murphy (R-PA) chairs a House Energy and Commerce Oversight and Investigations Subcommittee hearing on the U.S. response to the Ebola crisis  in Washington October 16  2014. REUTERS/Jonathan Ernst
WASHINGTON (Reuters)  - U.S. Republican Representative Tim Murphy  will resign from Congress on Oct. 21  House Speaker Paul Ryan said on Thursday  following a report alleging that  Murphy  had asked a woman with whom  he  was having an affair to get an abortion.
 Murphy  had said in a statement on Wednesday  he  would not seek re-election next year.  The lawmaker  had been a member of the Congressional Pro-Life Caucus  once receiving a 92 percent score from the conservative Family Research Council  which opposes abortion.
There was no immediate response from  Murphy ’s office for request for comment on Thursday.
The Pittsburgh Post-Gazette  citing a Jan. 25 text message  said the woman had chastised  Murphy  for asking her to get an abortion during a pregnancy scare despite  his  office posting an anti-abortion statement on Facebook.
According to the newspaper   Murphy  texted her in response: “I get what you say about my March for life messages. I’ve never written them. Staff does them. I read them and winced. I told staff don’t write any more. I will.”
 Murphy ’s extramarital affair had first been exposed in 2016 during the woman’s divorce proceedings  the Post-Gazette said.
“This afternoon I received a letter of resignation from Congressman Tim Murphy  effective October 21 ” Ryan said in a statement. “It was Dr.  Murphy ’s decision to move on to the next chapter of his life  and I support it.”

A:
Tim Murphy
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