Bam Margera s substance abuse is scaring his older brother, who said the Jackass star is dying in a crisis of addiction, criminal charges and strangers enabling his behavior.

I hope none of you ever have to hurt as much as me right now, musician Jess Margera wrote in an Instagram story over the weekend . He is dying and there is nothing I can do about it.

Bam Margera is free on $50,000 bail after his arrest in suburban Philadelphia last week on charges of simple assault, harassment and terroristic threats . Jess Margera said the arrest involves his brother punching him.

The charges set off a furious social media exchange between the brothers, with Bam Margera claiming his sibling will be sued for defamation for the false accusations, and Jess Margera responding on Twitter that his injuries might be serious and he could take legal action himself.

I might have permanent hearing damage from bams desperate lame ass little attack while I was making coffee, Jess Margera tweeted Sunday . If thats the case all of my bands upcoming touring income he will be sued for and I will fucking win. Im not a fun enemy to have.