quote from link:
"Apparently, some man was upset and just fired his gun into the air about a mile away from where we were. The bullet just came through the roof and into my arm," said Campbell. "It's just a freak event."

I'm going to do a little research on this, but if my brain is still functioning, the above staement is scientificaly impossible considering the energy of a free falling solid object weighing a couple of hundred grain.

I'll be back !!

http://wadcutter.blogspot.com/2006/02/falling-bullets-part-iii.html

The above link(and there are many) all agree that a falling bullet will have a velocity of around 300 fps and about 60 lbs energy and is virtually "free falling".
Not even close to enough velocity or energy to penetrate a roof or damage a shingle in my opinion.
I wonder what the velocity of a 180 gr bullet fired from a powerful slingshot would be, I suspect close to 300 fps, but could/would it penetrate exposed skin?, I'm very doubtful.

I'll buy the slingshot, I got the bullets, I need a "test dummy"

I don't know what would hurt worse, trying to follow the calculus equations or gettin hit in the head by the bullet !!!

Your right to be suspicious Hammer. The link you provided is excellent.

If it was under classical physics (no drag) the bullet would have as much energy at touchdown as it did the moment it left the muzzle (energy is conserved up and down).

Drag saves the day in this case.

Perhaps what happened at the wedding is that somebody shot toward the building and the bullet was not under freefall. Without seeing the building, the bullet, and the holes its impossible to tell exactly what happened.

Incidentially, a 180 grain mass moving at 300 fps only has ~35lbft of energy. Moving at 500fps it has about 100ftlbs.

A typical 45acp 230gr ammo delivers about 400ftlbs at the muzzle.

So a 180 grain freefalling mass at terminal velocity would have about 8.7% of the power of a 1911 at the muzzle.

Airsoft guns typically launch a 3 gram projectile (46 grains) @ similar velocities (sometimes faster). These leave welts at a distance, so I imagine that 35lbft might be able to break skin, given the small size of the bullet.

By the way 300 fps sounds slow but it is still 204 miles/hr. 500 fps is 340 miles/hr.

This link gives some pictures of Kristin's wound. Looks like it had enough energy to lodge in her skin but not much more. Fortunately it didn't hit somebody in the eye or worse....

http://www.nbc5i.com/news/9152403/detail.html

excellent link you provided there bit.

Regardless of what all the calculus equations conclude, the pics clearly show a bullet wound in the young lady's arm.

I think she said it best, "it was just a freak event."

I would be more skeptical of the distance the gunman was said to be at when the shot was fired.