Police have uncovered a stash of firearms at a sports ground in Whitefoot.
They were alerted by a member of the public on Thursday.
The haul included a loaded shotgun, one air rifle, four handguns, three muskets and a knife/gun weapon.
More top news
The killer's solicitor has written to police challenging them to prove his confession.
Tottenham last won the league back in 1961 - but they are feeling confident after a string of great performances this year so far.
Crimestoppers are offering the reward as police say they are becoming increasingly concerned at the viciousness of the assaults.