"All from the same school? That has to be more than a coincidence," Icene picked up the handgun rounds, "Plus it's someone who knows their firearms, these were fired from the same gun, but they're different rounds, one set were like half the charge? That's why it was kind of hard to link them any earlier."
She gestured to the rifle rounds, "Those were the same rounds, same gun. It's a shame I couldn't find anything that could link the two pairs of shootings together."