Two Roseburg Men Arrested In Eugene And Springfield Armed Robbery Investigation

ROSEBURG, Ore. - Two Roseburg men were arrested Wednesday night, November 11, after a joint investigation linked them to a series of armed robberies in Eugene and Springfield, according to Eugene Police.

Gregory Todd Dennis, 35, and David Lee Riggleman, 39, were taken into custody in Roseburg and lodged at the Lane County Jail.

Investigators identified four robberies connected to the investigation, beginning with Mulligan’s Pub on Willamette Street in Eugene at 2:51 a.m. September 11. The other incidents occurred at Hilltop Market on Donald Street in Eugene at 7:40 p.m. November 6, a donut shop on Pioneer Parkway East in Springfield at 6:21 a.m. November 10, and Anna’s Deli on Royal Avenue in Eugene at 8:21 a.m. that same morning.

Police believe Dennis acted alone in the Hilltop Market robbery.

The investigation led officers to Douglas County after Springfield police identified a vehicle’s license plate in surveillance footage. Eugene and Springfield investigators worked together to identify the suspects, then traveled to Roseburg and searched the area until they located the vehicle.

Police served search warrants at two homes and on the car. Investigators reported recovering clothing believed to belong to the suspects, one firearm and two replica firearms.

Dennis was booked on three counts of first-degree robbery, one count of second-degree robbery, two counts of second-degree kidnapping, three counts of unlawful use of a weapon, one count of felon in possession of a weapon and a warrant.

Riggleman was booked on two counts of first-degree robbery, one count of second-degree robbery, two counts of second-degree kidnapping and one count of unlawful use of a weapon.

Roseburg Police assisted with the investigation. Oregon State Police also provided a K9 officer at the scene of the deli robbery, according to Eugene Police.

The charges are allegations. Both men are presumed innocent unless proven guilty in court.