Doetzer said his store, which opened about two years ago, sells a range of weapons and that he encourages buyers to get “whatever feels best in your hand.”
For Springer, that was the Glock. Doetzer said Springer passed a background check, bought a box of hollow-point cartridges and left.
Springer graduated from Carnegie Mellon University in 2007 and worked as an information technology support associate at the university's Software Engineering Institute.
Chaihirunkarn was a doctoral student at CMU's School of Computer Science, according to a message sent to university employees and students.
“Out of respect to the families, we are providing no further information about their passing,” Gina Casalegno, the university's dean of student affairs, said in a statement.