From Staff ReportsPURCELL — Three people were killed Saturday in two accidents on Interstate 35, authorities said. Two pedestrians were struck by vehicle about 9:30 a.m.on the northbound side of the road at mile marker 102, which caused traffic to back up for miles on the highway. At mile marker 98 about 10:30 a.m., a motorcyclist swerved to avoid backed-up traffic and struck the cable barrier.Read more on NewsOK.com