He was tried 06 Sept 1833 at Inverness, so I think the following transcription is a match, and highly possible is the same fellow that Maddy's news article is on:
Perthshire Courier 12 September 1833
CIRCUIT INTELLIGENCE
Inverness, Sept. 6
The Circuit Court of Justiciary was opened here on Thursday by the Right Hon. Lord Meadowbank.
[other cases discussed first; jumping down to Robert Williamson]
The Court met the next morning, and proceeded with the case of Robert Williamson, pedlar, from Elginshire, who was accused of having, in June last, stolen a horse, the property of Alexander Grant, farmer in the Parish of Knockandow and also of having abstracted a number of articles from the house of Elizabeth Inkson, at Knockandow. the pannel on being asked whether or not he was guilty of the charge brought against him, declined to return an answer, and it appeared that for some time past he had not spoken a single word. Drs. Brander and Stehen, on being examined, said they had no doubt but the prisoner feigned insanity.
After the evidence had been closed, the case was summed up by Lord Meadowbank, and the Jury, without retiring, returned a verdict of guilty of horsestealing, after which the prisoner was sentenced to transportation for 14 years.
The "Knockandow", when searching Google, seems to now be written without the ending letter "w".
A quick look didn't help me find his Native Place; someone will find it though!