UPDATE 8/1/2014: SPD says it has identified the driver in Thursday’s incident:
SPD Traffic Collision detectives have identified the truck and driver involved in the collision and are still investigating the cause of the incident. Police have not arrested the driver of the truck, who is employed by a local waste management company, under contract with the city.
Cleanscapes has confirmed that the collision involved one of its vehicles and drivers.

This map from a 2010 SDOT study showed the dangerous conditions for pedestrians around 9th and James
Original Report: A person crossing the street near 8th and James was struck by a large commercial truck and killed Thursday afternoon near a First Hill crossing that is one of the most dangerous in Seattle. Police are searching for more information about the truck and the driver who left the scene of the 3:30 PM incident.
Seattle Fire and police rushed to the collision Thursday but the medic response was quickly canceled as arriving crews found the victim dead at the scene. Witnesses told police that a large commercial truck struck the pedestrian and did not stop. “Police do not yet know if the driver was aware they had struck the victim, and have not yet established whether this is an intentional hit and run case,” an SPD spokesperson wrote in the department’s initial report on the incident. The victim has not yet been publicly identified. UPDATE: The victim has been identified as 42-year-old Rebecca Scollard. Her most recent address is listed as the Seattle Housing Authority’s low-income Denny Terrace building at 100 Melrose Ave E. She has also been a resident in transitional housing on Belmont Ave.
Police were interviewing witnesses and had located cameras near the scene that may have captured images of the truck or the incident. Investigators remained on scene into the night to collect evidence. If you have any information that may aid the investigation, call 911.
The block where the collision occurred has repeatedly been identified as one of the most dangerous areas for pedestrians in the city. Ironically, it is located at the entrance to Harborview Medical Center.