Mr Murphy's client, a war veteran who served in Bosnia and Kosovo, did not trust him and set up a secret camera inside his room and signed his banknotes just in case a theft occurred.
The man told the Greenock Telegraph after Mr Murphy was found guilty: "He's a care worker. Is that caring?
"I wanted to catch this guy and I did it for the greater good.
"I want him to be ashamed and people to know what he has done."
Salvation Army disciplined Mr Murphy after claims he stole from the veteran came to light, putting him under careful observation, but are now reviewing whether they should continue to employ him now he's been formally found guilty.
A spokesperson said: "The action that we promised to take was to continually monitor Mr Murphy in line with the policies and procedures of our homelessness services unit.
"In light of the outcome of the recent court case, we have held a further disciplinary hearing.
"While we recognise that Mr Murphy failed to follow our agreed working protocols, we have an obligation to follow legal process so therefore are not a position to provide any more details at this time."
