[quote=@rush99999]
[@Guardian Angel Haruki]

I'm pretty sure Jacoby would know whether the spell could do that or not.
[/quote]
Jacoby would typically know the wording of his spells and the limitations of them as stated in the spell. For Suggestion, here's the key phrasing:

[quote=PHB]
You suggest a course of activity (limited to a sentence or two) and magically influence a creature you can see within range that can hear and understand you. Creatures that can’t be charmed are immune to this effect. The suggestion must be worded in such a manner as to make the course of action sound reasonable. Asking the creature to stab itself, throw itself onto a spear, immolate itself, or do some other obviously harmful act ends the spell.[/quote]
Letting go of someone is usually a reasonable request. In fact, you could word it in such a way to make it seem that [i]not[/i] letting go would be more harmful than otherwise.