MOHAVE VALLEY – Excessive speed is a suspected factor in a fatal motorcycle accident that remains under investigation in Mohave Valley. The Mohave County Sheriff’s office responded at 11:10 a.m. on Friday, February 14 to the accident in the area of milepost 22 on the Oatman Highway. “Upon arrival, a single male subject was located unresponsive on scene with no passengers,” said sheriff’s spokeswoman Anita Mortensen. She said Murray Brandt, 64, Manitoba, Canada was pronounced dead at the scene. “The motorcycle was traveling south of Oatman Highway from Oatman when it failed to negotiate a left curve in the roadway…