Question: In between Michael Casey and Zach Bogosian, who is an ice hockey defenseman?

Context paragraphs:
Jack Roslovic: John "Jack" Roslovic (born January 29, 1997) is an American professional ice hockey player, who is currently playing with the Manitoba Moose in the American Hockey League (AHL) as a prospect to the Winnipeg Jets of the National Hockey League (NHL).  He was selected in the first round, 25th overall by the Jets in the 2015 NHL Entry Draft.  The Jets acquired the draft pick in a trade that sent Evander Kane and Zach Bogosian to the Buffalo Sabres in exchange for Tyler Myers, Drew Stafford, Joel Armia, and Brendan Lemieux.

Zach Bogosian: Zachary M. Bogosian (Armenian: Զաքարի Մ.  Պողոսյան , born July 15, 1990) is an American professional ice hockey defenseman currently playing for the Buffalo Sabres.  Bogosian attended Cushing Academy in Massachusetts before he joined the Peterborough Petes of the Ontario Hockey League (OHL) in 2006.  He played two seasons in the OHL, and was nominated for the Red Tilson Trophy as the league's most outstanding player in his second season.  Bogosian was regarded as a complete, physical defenseman who could contribute on both offense and defense; he was rated as one of the top players heading into the 2008 NHL Entry Draft, where the Atlanta Thrashers selected him third overall.  He signed a contract with the team a few weeks after the draft and began the season with the Thrashers, though he missed several weeks of his rookie year due to injury.  In his second season, he tied a team record for goals by a defenseman.  Bogosian first played in an international tournament when he joined the American national team at the 2009 IIHF World Championship.

Peter Hayek: Peter Milton Hayek (born November 16, 1957) is a retired American professional ice hockey defenseman who played in one National Hockey League game for the Minnesota North Stars during the 1981–82 NHL season.  He played his college hockey at the University of Minnesota under Herb Brooks.  He won the 1979-80 Men's NCAA Ice Hockey Championship and was on the roster (JV team) for the 1976-77 championship.  While at the University of Minnesota, Hayek was part of the freshman class of 76'-77' that many consider the greatest in Gopher hockey history.  He has since coached youth hockey in Minnesota.

Rod Langway: Rodney Cory Langway (born May 3, 1957) is an American retired professional ice hockey defenseman who played for the Montreal Canadiens and Washington Capitals in the National Hockey League (NHL) and Birmingham Bulls of the World Hockey Association (WHA).  Langway also spent time with teams in the American Hockey League (AHL) and East Coast Hockey League (ECHL) as a player-coach after his NHL career ended.  A two-time winner of the James Norris Memorial Trophy as the top defenseman in the NHL, Langway was elected to the Hockey Hall of Fame in 2002.

Michael Casey (poet): Michael Casey (born 1947) is an American poet of Armenian descent.

Michele Strazzabosco: Michele Strazzabosco (born February 6, 1976) is a former Italian ice hockey defenseman.  He played for two decades in the top Italian ice hockey league (Serie A) and was a member of the Italian national ice hockey team for a dozen years, including at the 2006 Winter Olympics in Turin.  Strazzabosco is considered one of the top native players in Italian ice hockey history.

Emma Terho: Emma Kristiina Terho (née Laaksonen) (born 17 December 1981 in Washington, D.C.) is a Finnish female ice hockey defenseman.  She played on the women's ice hockey team for Finland at the 1998 Winter Olympics, winning a bronze medal.  She was the youngest woman on the team (16 years, 54 days).  Laaksonen played for the Ohio State women's ice hockey team from the 2000–01 to 2003–04 seasons.  At Ohio State, Laaksonen was the first to earn All-America, was a finalist for the Patty Kazmaier Memorial Award and had her number 3 retired.  Her number was retired by Ohio State on October 11, 2008.  The ceremony occurred prior to the football game between Ohio State and Purdue at Ohio Stadium, where Laaksonen was recognized on the field at the 50-yard line.  She was inducted into the Ohio State Athletics Hall of Fame on 25 September 2009.

Steven Santini: Steven Michael Santini (born March 7, 1995) is an American professional ice hockey defenseman who is currently playing for the New Jersey Devils in the National Hockey League (NHL).  He played for the Boston College Eagles men's ice hockey team of the NCAA Hockey East conference.  Santini was selected by the Devils in the 2nd round (42nd overall) of the 2013 NHL Entry Draft.

Zach Palmquist: Zach Palmquist (born December 9, 1990) is an American professional ice hockey defenseman currently playing with the Iowa Wild of the American Hockey League (AHL) within the Minnesota Wild organization of the National Hockey League (NHL).

Michael Sauer (ice hockey): Michael Curtis "Mike" Sauer (born August 7, 1987) is an American former professional ice hockey defenseman who played three seasons in the National Hockey League (NHL) with the New York Rangers.  He is the younger brother of Phoenix Coyotes defenseman Kurt Sauer, and of former Atlanta Falcons and Minnesota Vikings (NFL) linebacker Craig Sauer.  Sauer was born in St. Cloud, Minnesota, but grew up in Sartell, Minnesota.

Supporting paragraphs: Michael Casey (poet) Zach Bogosian
Answer: Zachary M. Bogosian