Chicago police commander killed assisting on call

CHICAGO -- A police commander was fatally shot while responding to a call Tuesday in downtown Chicago, authorities said.
Cmdr. Paul Bauer, 53, went after a suspect who had an altercation with other officers and escaped, police Superintendent Eddie Johnson said. The commander had been attending training and heard an alert, CNN affiliate WBBM reported.
Bauer, a 31-year veteran, encountered the individual and was shot several times, Johnson said.
At first, Johnson had said Bauer was off-