Holding a door open is generally considered an act of politeness, but in Peter Wang's case, it was a life and death situation. He met death with honor to save the life of his classmates by allowing them to escape a madman with a gun.
Peter was a member of the school's Junior ROTC program, and was wearing his grey JROTC shirt when his life was cut short. Because he is only a cadet, he does not qualify for a burial with full military honors, but since he sacrificed his life honorably for his fellow citizens, many feel that he deserves such.
Currently, there is a petition available at: https://petitions.whitehouse.gov/petition/allow-cadet-peter-wang-receive-full-honors-military-burial requesting the president to authorize such. I'm asking that you sign the petition and pass the word to your friends, relatives, anyone you deal with in Social media to ask them to sign it.
I'm not looking for front page glory here, so I'm not worried about the upvotes. Just the results. No, it won't do Peter any good, but it will help a grieving family know that others appreciate his actions.
There's also a Go Fund Me page to raise money for his funeral costs.
Story at http://www.independent.co.uk/news/world/americas/florida-school-shooting-latest-student-died-holding-door-peter-wang-a8213436.html among other sites. Google if you feel this is not a good source.