A £6,000 reward is still being offered for anyone who can help bring the killer to justice.
Mrs Edmonds' son Harry, who discovered his mother's body in her cottage, has offered £3,000 to the sum. A further £2,000 has been put up by Hampshire police and £1,000 from Crimestoppers.
The money will be paid to whoever supplies information leading to a successful arrest and prosecution.
If you have information call Hampshire's major crime department on 0845 045 4545 or the anonymous Crimestoppers line on 0800 555 111 quoting Operation Columbian.
