A federal grand jury indicted a Columbus man on six armed-robbery charges April 16.

A federal grand jury indicted a Columbus man on six armed-robbery charges April 16.

Thomas E. Shaffer, 62, of Sanctuary Drive in north Columbus, was arrested in December in connection with an armed robbery at the Aldi at 8156 Orange Center Drive.

Shaffer was charged with five other armed robberies at The Pub, 207 W. Johnstown Road, near Gahanna; Halftime Tavern, 1532 Bethel Road in Columbus; Brew-Stirs, 3028 N. High St. in Columbus; Lazy Chameleon, 4028 Presidential Parkway in Powell; and Villa Nova, N. High St. near Worthington.

The robberies all occurred between March and December 2014.

The grand jury indicted Shaffer on six counts of robbery, a felony punishable by up to 20 years in prison, and six counts of using a firearm during the commission of the robberies.

Brandishing a firearm during and in relation to a crime of violence carries a potential penalty of seven years in prison for the first count of conviction and up to 25 years of prison consecutively for each additional count.

Representatives from several state and federal organizations were involved in the case, including Delaware, Powell, Worthington, Gahanna and Columbus police departments and the Cincinnati field office of the Federal Bureau of Investigation.