Officer Gary Michael, 37, was shot and killed late Sunday after pulling over a driver near Clinton, which is about 60 miles north of Springfield. Michael died from his injuries. Police officers are always mindful that something bad could happen.
"We're not sure if any of those rounds struck the suspect, but Officer Michael was fatally wounded", Lowe said.
They are advising the public to avoid contact with McCarthy as he is considered armed and unsafe.
As the hunt for him intensified on Monday, he was named as a suspect.