Bremer County Sheriff Duane Hildebrandt escorts Jeremiah Mumford, front, into court Wednesday, Oct. 31, 2012, in Waverly. In back are Chief Deputy Dan Pickett with William Clayton. Mumford is charged with four counts of terrorism and six counts of attempted murder stemming from a bank robbery Tuesday in Maynard. Clayton is charged with four counts of terrorism and six counts aiding and abetting attempted murder. (DENNIS MAGEE/Courier)

One of the two men accused of shooting two police officers earlier this week allegedly also fired at a civilian multiple times, according to criminal complaints.

As a result, William Clayton, 19, of Osage, and Jeremiah Mumford, 24, of New Hampton, face additional charges in connection with a robbery at  the Maynard Savings Bank in Fayette County.

Authorities Thursday afternoon added multiple charges to those leveled against Mumford and Clayton that morning in Bremer County.

Clayton is charged with terrorism, first-degree robbery and two counts of aiding and abetting attempted murder in Fayette County. Each charge is a Class B felony.

Mumford is charged in Fayette County with terrorism, first-degree robbery and two counts of attempted murder. Sumner Police Chief Dennis Cain and Iowa State Trooper Mark Domino were wounded in a gun battle during an ensuing pursuit of the robbery suspects.

According to the criminal complaints, Mumford and Clayton allegedly walked into the bank shortly after 11 a.m. Tuesday with a “fully loaded assault rifle(s).” They then robbed bank staff members at gunpoint, taking more than $15,000 in cash.

Clayton allegedly drove the escape vehicle, according to court documents, as law enforcement officials chased the vehicle out of Maynard. They apparently encountered a civilian motorist, and Clayton stopped his vehicle on U Avenue in Fayette County.

Mumford allegedly got out of the vehicle and “fired numerous rounds into the civilian’s vehicle, striking it at least six times.” According to the criminal complaints, he was using an assault rifle.

According to court documents, Mumford got back in his vehicle, and the pair took off again with officers in pursuit. Mumford allegedly shot numerous times at a patrol car during the chase, hitting the officer’s vehicle at least three times.

The bank robbery, chase and shootings sparked a massive response from law enforcement officials. Representatives from 16 agencies converged on the area, cornering Mumford and Clayton after the two men abandoned their vehicle.

A manhunt developed in an area near Frederika. After nearly eight hours, officers apprehended the two men.

In Bremer County, Mumford is charged with four counts of terrorism and six counts of attempted murder. Clayton in Bremer County is facing four counts of terrorism and six counts of aiding and abetting attempted murder.

The two men are each being held in the Bremer County Jail on $1 million bond, cash only.