Cold case squad makes arrest
Team identifies suspects, nab one in old murder

LAWRENCEVILLE - Cold case investigators have dusted off files for a 2006 murder in Lawrenceville and pegged two men as perpetrators, marking twice this month the newly enhanced unit has reportedly solved a case not under active investigation.

Investigators have obtained warrants - and made one arrest - in the Oct. 27, 2006, shooting death of Lal Ko of Lawrenceville. He was gunned down alongside Bethesda Park Trail and, for the two ensuing years, no suspects were identified.

Gwinnett police spokeswoman Cpl. Illana Spellman said the department's cold case squad recently launched a new investigation into the murder. They found probable cause that two of Lo's acquaintances - Joseph Diaz, 20, of Oakwood, and Victor Pastor-Flores, 24, whose address is unknown - allegedly shot the victim "after some type of dispute," Spellman said.

Police arrested Diaz on Friday morning in Hall County, charging him with murder, while Pastor-Flores' whereabouts are unknown, Spellman said.

The arrest marks the second solved case in January for the squad, which was beefed up from a single investigator to four in December, authorities said.

On Jan., 6, investigators charged two men with the shooting death of David Hernandez, 16, at a Norcross gas station in August 2007.

Investigators have said the shooting was gang-related. Hernandez was a member of Surenos-13, while his assailants claimed MS-13, a violent group that originated in El Salvador, authorities said.