He was chairperson of the university 's department of biological sciences , with a particular interest in the ecology of Populus and their mycorrhizal symbionts .
He was one of three faculty members killed in a shooting at the university on February 12 , 2010 .
one was one of the university 's department of biological sciences , with a particular interest in the ecology of Populus and their mycorrhizal symbionts .
He was one of three faculty members killed in a shooting at the university on February 12 , 2010 .