SIERRA VISTA — After a number of small suspicious fires erupted in and around the Sierra Vista area over the last 24 hours, local fire officials have requested assistance from state fire investigators to determine if there is any connection between them. One of the fires occurred at about midnight Thursday in the lower area of Ramsey Canyon, near the trail head for Brown Canyon, said Fry Fire Chief Bill Miller. The fire was extinguished after burning less than an acre. On Wednesday afternoon, Palominas Fire District personnel responded to a brush fire in the area of Highway 92 and...