Northampton Mercury - Saturday 28 March 1835
"Bedford Lent Assizes
In addition to the trials which we reported last week, the following cases were disposed of :-
James and Charles Beeson being convicted of a burglary in the house of Mrs. Cook, of Houghton Regis, on the night of December 4, judgement of death was recorded against them. A similar sentence awaited the prisoners, had this prosecution failed, for wounding, with intent to murder, Spicer, the Countess of Bridgewater's gamekeeper, for which their accomplice Kempster, was sentenced to death at the Hertford assizes."
And there is a long article here > Hertford Mercury and Reformer - Tuesday 10 March 1835 > which I am way too lazy to type out - about Thomas Kempster and the gamekeeper William Spicer, and the Beeson bros. were there too. You can access the article on this paysite
http://www.britishnewspaperarchive.co.uk/ or I think Findmypast has the same thing.