He was a legal immigrant.
“Private Emmanuel Mensah went off to serve in the Army National Guard, but it was back home where he made the ultimate sacrifice.
Mensah died trying to rescue people from his burning apartment building last month in the Bronx, New York, in the city’s deadliest fire in more than 25 years, Mayor Bill de Blasio said.
Mensah, 28, had immigrated from Ghana in Africa and was a permanent legal resident in the US.”...Secretary of the Army Mark T. Esper approved the posthumous award of The Soldier’s Medal for Mensah. The medal is the Army’s highest award for heroism that occurs outside of combat, according to the National Guard.
“Private 1st Class Mensah’s heroic actions are in keeping with the highest traditions of military heroism and selfless service and reflect great credit upon himself, the New York Army National Guard and the United States Army,” the award citation says.
The link has good information but the political spin is heavy at time.
http://www.cnn.com/2018/01/12/us/emmanuel-mensah-bronx-fire-trump/index.html
Why would you ask if he came here illegally? Ghana does not share a border with the United States. Or do you think he swam all the way from Ghana to the United States?