To what does this condition point?
Surely not to a murder of expediency so much as to a fierce, lustful butchery of vengeance.

Surely it suggests that Gandia may have been tortured before his throat was cut.

Why else were his wrists pinioned?
Had he been swiftly done to death there would have been no need for that.

Had hired assassins done the work they would not have stayed to pinion him, nor do we think they would have troubled to fling him into the river; they would have slain and left him where he fell.
The whole aspect of the case suggests the presence of the master, of the personal enemy himself.

We can conceive Gandia's wrists being tied, to the end that this personal enemy might do his will upon the wretched young man, dealing him one by one the ten or fourteen wounds in the body before making an end of him by cutting his throat.