Merrillville Police Detective Joe Cooper (left) and Det. Cmdr. Jim Lilley speak during a press conference at the Merrillville Police Department in Merrillville, Ind. Wednesday March 7, 2012. Police announced the arrest of and charges against Jeremy K. Blue for the murder and robbery of convenience store clerk Judi Simpson-Beaver at the Lucky Food Store in Merrillville Sunday. Police are also looking for two other persons of interest. | Stephanie Dowell~Sun-Times Media

Police announced the arrest of and charges against Jeremy K. Blue (pictured) during a press conference at the Merrillville Police Department in Merrillville, Ind. Wednesday March 7, 2012. Blue is charged in the murder and robbery of convenience store clerk Judi Simpson-Beaver at the Lucky Food Store in Merrillville Sunday. Police are also looking for two other persons of interest. | Stephanie Dowell~Sun-Times Media

Merrillville Police Detective Joe Cooper (left) and Det. Cmdr. Jim Lilley speak during a press conference at the Merrillville Police Department in Merrillville, Ind. Wednesday March 7, 2012. Police announced the arrest of and charges against Jeremy K. Blue for the murder and robbery of convenience store clerk Judi Simpson-Beaver at the Lucky Food Store in Merrillville Sunday. Police are also looking for two other persons of interest. | Stephanie Dowell~Sun-Times Media

Still photo provided of one of two additional suspects in Sunday's murder of Judi Simpson-Beaver. | Provided photo~Sun-Times Media

Still photo provided of two additional suspects in Sunday's murder of Judi Simpson-Beaver. | Provided photo~Sun-Times Media

Still photo provided of two additional suspects in Sunday's murder of Judi Simpson-Beaver. | Provided photo~Sun-Times Media

Merrillville Police Detective Joe Cooper, (from left) Chief Joe Petruch and Det. Cmdr. Jim Lilley speak during a press conference at the Merrillville Police Department in Merrillville, Ind. Wednesday March 7, 2012. Police announced the arrest of and charges against Jeremy K. Blue for the murder and robbery of convenience store clerk Judi Simpson-Beaver at the Lucky Food Store in Merrillville Sunday. Police are also looking for two other persons of interest. | Stephanie Dowell~Sun-Times Media

Judi Simpson-Beaver with her grandson Caleb. Simpson-Beaver was murdered Sunday Mar. 4 during an armed robbery of the Merrillville convenience store where she worked. | Provided photo~Sun-Times Media

Judi Simpson-Beaver with her two sons. Simpson-Beaver was murdered during an armed robbery Sunday Mar. 4 at the Merrillville convenience store where she worked. | Provided photo~Sun-Times Media