BENTONVILLE, USA – Evidence on the hard drive of a murdered man’s computer was damaged after police seized the machine, a computer forensics expert testified Thursday. After Howard was murdered in September 1999, police used information from his hard drive to discover whom he spoke to and where he went the last days of his life. Tim Hanners, the manager of computer investigation for Vogon International, a private company in Norman, Okla., providing data recovery services, testified late Thursday about the tainted data…