Suspect killed in standoff may be linked to two murders

<p>Gwinnett County police are investigating whether a man killed after a three-hour standoff at his suburban Atlanta home was involved in the murder of his 31-year-old girlfriend, and DeKalb County authorities say he may be linked to another killing.</p><p>Khalid Nelson, 27, was fatally shot by Gwinnett County SWAT team members Tuesday after he threatened officers with a pistol during the standoff, said Gwinnett police spokesman Darren Moloney.</p><p>The officers were dispatched to Nelson's home after they found the body of Roslyn Nicole Tobias, who had been dating Nelson for a few months, Moloney said.</p><p>When officers arrived, they encountered DeKalb County police who were also seeking to arrest Nelson on murder charges, he said. DeKalb County police suspected Nelson in the killing of Asim Glaze, who was found dead at his home on Saturday, said DeKalb Detective A. Toledo. He said police are still investigating a possible motive for Glaze's death.</p><p>Nelson barricaded himself inside his garage when the DeKalb deputies tried to serve a warrant, prompting the officers to call the SWAT team, Moloney said.</p><p>The police used an armored personnel carrier to break down the garage door after negotiations failed and the suspect would not respond to repeated calls, Moloney said.</p>