"The Worst Shooting Incident In U.S. History"

Unbelievable.

(CNN) -- A gunman who killed at least 30 people in one of two shootings on the campus of Virginia Tech was dressed "almost like a Boy Scout," said a student who survived by pretending to lie dead on a classroom floor.

"He just stepped within five feet of the door and just started firing," said Erin Sheehan, who was in one of the Norris Hall classrooms where the second shooting incident took place.

Sheehan described the gunman -- who later shot and killed himself, according to police -- as a young man wearing a short-sleeved tan shirt and black ammunition vest.

"He seemed very thorough about it -- getting almost everyone down -- I pretended to be dead," she said. (Watch student describe surviving by playing dead )

"He was very silent," said Sheehan, one of only four students in her 25-student German class who were not shot.

The gunman left but returned in about 30 seconds. "I guess he heard us still talking," said Sheehan.

"We forced ourselves against the door so he couldn't come in again, because the door would not lock."

Listen, I already know which way the debate on this is heading in the blogosphere: the cons will tell us again and again that "guns don't kill, people do", while the libs will scream for more gun control. Personally, I lean on the side if the libs on this one as it seems to me that the "well regulated" part of the Second Amendment always gets ignored or pushed aside by the gun advocates and in their "right to bear arms" campaign. Yet, no matter what side of the aisle you're on regarding guns, it's my feeling that our thoughts and prayers should first be with the families who lost loved ones in this heinous act of violence. Because while we may debate this for a few days, they're the ones who will have to live with this forever.