Sleaford was was found guilty of murder by a jury with an 11-1 majority verdict.
BBC: Boston stabbing: Stephen Sleaford found guilty of murder
Mr Ebbutt then drove Mr Sleaford to Newcastle and later let him stay in his caravan.
Andy Dunlop is leading the group from Swaton, near Sleaford, to compete in Amritsar in north-west India.
However, Sleaford Town Council refuses to sell land needed for an access road, because it includes rare woodland.
Sleaford, of no fixed address, was sentenced to life imprisonment with a minimum of 23 years on Thursday.
BBC: Boston stabbing: Stephen Sleaford found guilty of murder
She also recalled Sleaford telling her: "We've dealt with it, " and "It will only be 15 years in prison".
BBC: Boston stabbing: Stephen Sleaford found guilty of murder
Mr Smoderek died in a garden off Sleaford Road, Boston on 11 September.
BBC: Boston stabbing: Stephen Sleaford found guilty of murder
Last year, duck feeders in Sleaford were warned not to leave food on river banks because it was attracting rats.
Unison said the council had pledged to keep Linelands in Nettleham, Bonner House, in Sleaford, and Harrison House, in Grantham, open.
Lincoln Crown Court heard Stephen Sleaford stabbed Janusz Smoderek, 48, five times in the chest, before boasting "We've dealt with it".
BBC: Boston stabbing: Stephen Sleaford found guilty of murder
Sleaford town clerk Shelagh McIntyre said the playing fields at the centre of the development row were an important asset for the town.
Natisha Nodder, 37, and Stephen Ebbutt, 44, from Boston, Lincolnshire, helped Stephen Sleaford go into hiding after he stabbed Janusz Smoderek in 2011.
It confirmed it would still build in Sleaford, despite delays on the development of the Bass Maltings complex, which includes apartments, shops and restaurants.
The pair admitted perverting the course of justice by organising lifts and accommodation for Mr Sleaford who was found guilty of murder last week.
Tesco received planning permission for a new store in Sleaford in 2009, and this week confirmed it still intended to go ahead with the project.
Plans for 22 turbines at Heckington Fen near Sleaford have been approved by the Secretary of State for Energy, four years after the project was proposed.
Mr Sleaford went on the run from police for 11 days - travelling first to his aunt's house in Newcastle then a number of addresses in Lincolnshire.
At Lincoln Crown Court a judge heard how 38-year-old Sleaford had fled to Miss Nodder's home after the stabbing in Sleaford Road, Boston, where she arranged a lift for him.
The 16 stations would be located at Grimsby, Gainsborough, Louth, High Peak, Worksop, Skegness, Newark, Eastwood, Ashbourne, Sleaford, Ashby de la Zouch, Loughborough, Melton Mowbray, Market Deeping, Market Harborough and Hinckley.
"Since 2008 the town council has said it does not want to sell the land, the people of Sleaford do not want us to sell this land and nothing has changed, " she said.
The Conservative MP for Sleaford and North Hykeham, Stephen Phillips, has said he will call on Parliament to hold an inquiry into the case and that all evidence about the Lincolnshire trust be made public.
The jury was told Sleaford had previously been jailed for 11 years for an offence of grievous bodily harm with intent after forcing his way into a house and twice shooting a man he had previously threatened.
BBC: Boston stabbing: Stephen Sleaford found guilty of murder
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