HOT SULPHUR SPRINGS, Colo. — A Grand County man pleaded guilty to second-degree arson and attempted bribery of a witness or victim in cases arising from a June fire in Grand Lake and alleged efforts to influence a law enforcement officer. Jorge Varela, 36, entered the pleas Aug. 19 in Grand County District Court. Both offenses are Class 5 felonies. Under the plea agreements, any prison terms in the two cases and a related probation case would ru…