Joliet man accused of gunning down Chicago woman at Hammond Ind. Walmart

The boyfriend of 21-year-old woman from Chicago who was killed during a shooting attack at a Hammond, Ind. Walmart, remains in custody Wednesday after being charged with her murder.Dorian Kevon Robertson, 22, of Joliet, is being held at the Lake County Jail charged with first-degree murder in the slaying of Dakota Norwood, 21, according to Hammond police Cpt. Steve Kellogg.Investigators determined that Norwood and the suspect knew each other and had been involved in a relationship, Kellogg said. The exact nature and length of that relationship remains under investigation, according to Kellogg.At approximately 9:09 a.m. Monday, Hammond police were called to the Walmart, 1100 S. 5th Ave., store after an off-duty Hammond police officer working store security reported that a shooting had erupted and a suspect was in custody, according to Kellogg.Norwood was working at the store when a conversation with Robertson, who she'd been in a relationship with, escalated into a physical altercation,