Some within the party suspect a more sinister motive, however.
Times, Sunday Times
This may be true in some cases, but undoubtedly there are often much more sinister motives at work.
Times, Sunday Times
However, the scenes yesterday were spontaneous, stemming from frustration rather than more sinister motives.
Times, Sunday Times
But there can be more sinister motives.
The Sun
Others read more sinister motives into the mystery.
canada.com