You need a hoodoo shut up spell.
Take 13 nails. Charge them with negative energy.
Drive the nail into the red candle, which has also been negatively charged. Visualize them tied down, burning and their mouths sown shut.
1st nail: “with this nail, his mouth is sown shut”
2nd nail: “with this nail, his feet are nailed in place, becoming stagnant and in pain. His path, closed and blocked”
3rd nail: " with this nail, his intentions are silenced"
4th nail: “with this nail, may he be struck down”
5th nail: “with this nail, may ignorance cloud his mind”
6th nail: “with this nail, may his fate be sealed and his coffin struck shut.”
7th nail: “with this nail, may the spirits of the dead haunt him”
8th nail: “with this nail, may all success be taken from him”
9th nail: “with this nail, may his lovers leave him and may he drown in his tears. No forgiveness shall be had for him and his bonds, slaughtered.”
10th nail: “with this nail, may he real what he sows”
11th nail: “with this nail, may pain and darkness ensue”.
12th nail: “with this nail, his time and luck has run out”.
13th nail: “with this nail, the spell is complete.”
Now you don’t need to do 13 but if you don’t, keep it at an odd number. You could also do each nail over the course of 13 days (if you decide on 13 nails) or you can do it how I do it and use all 13 right then and there. Also, graveyard dirt helps, but get the dirt from the grave of a negative person, if you can help it. (being a bitch or a murderer. Somewhere in between that)
Also, magickal sulfur helps.