Jacob Hawden, 33, is described by his family as both "unique" and "missed by all who knew him".
Police are appealing for information or dashcam footage.
Historic England says the cottage is "a rare record" of how people depended on their surroundings.
Nazi memorabilia and more than 600 weapons are uncovered by officers searching his property.
Security is on site as a new household waste regime is introduced.
Felix Gatdula says he has lost "two people who were my whole world", as police renew footage appeal.
Liam Brodie was reluctant to visit his customer after learning her husband would be meeting him, police say.
The woman says an oncoming lorry swerved into her lane earlier on the day of a fatal crash.
Cambridgeshire Police is appealing for anyone with information to come forward.
