peter wang, 15 year old, last seen holding a door open so other could escape. carman was a semifinal list for a national merit scholarship. lana petty helped victims of hurricane irma rebuild. nicholas morrisas cents a swimmer, who had committed to swim for the university of indianapolis. and geography teacher scott eagle was killed helping student enter a locked classroom to avoid the gunman. >> he was just amazing person, mr. eagle his name, and he will forever be in my heart and forever be my hero. he saved my hive >> three adults, 14 teenagers gunned down all being remembered this morning by family, friends, and a stunned community. hena doba, cbs-3, "eyewitness news" >> local school districts are reviewing their plans in case similar tragedy happens here. delaware county every school has a panic button that immediately alerts law enforcement to a dangerous situation or intruder, in a threatening situation >> whether that button is pushed, there is a certain protocol here at the 911 sent their our dispatchers follow. not just a call to the school, it is an immediate response where law enforcement is sent, as bet we can describe it, call valerie is coming >> meantime philadelphia police