[svandamme]

I'm calling BS on that.
bullets loose energy when they ricochet.

Only thing I can imagine is that the bullet struck some kind of hard object that released shards and those hit more people..

like bullet his a brick, brick shatters and bystanders get peppered with brick.
or bullet his gravel in the ground, gravel goes flying, peppers people.

1 single bullet actually hitting 7 people in 1 firing is just not possible.