Sadus drummer Jon Allen seen in disturbing video with partner and her son

Update #2: The band was parted ways with drummer Jon Allen.

Update: A GoFundMe has been started by Collins, here.

Jon Allen, drummer of California thrash metal band Sadus, has recently been recorded allegedly attacking a woman named Brandy Mae Collins while her elementary-aged son watched. This all occurred while she was hooked up to a dialysis machine, resulting in severe health complications. 

Bassist/Vocalist Devin Reiche of Anubis came forward with video evidence detailing this incident, as well as more context:

CONTENT WARNING: Extremely detailed video footage of woman hooked up to dialysis being beaten as her elementary school-aged son watches in horror.
So, you know whose music I love??? SADUS. They're like, one of my favorite bands from that late '80s/early '90s period where thrash metal was gradually evolving into technical death metal. 
THAT SAID, here's some footage of their drummer Jon Allen beating the absolute living fuck out of my friend Brandy while she was hooked up to a dialysis machine (as her elementary school-aged son watches and tries to intervene). She ended up hospitalized some days later after she started urinating blood, and it turned out that he had dislodged her catheter into her ovaries, and from what I understand she almost died as a result. 
Any questions you may or may not have, I'm sure she'd be willing to answer.

Viewer discretion is advised for the following footage and pictures: 

It appears that Allen and Collins were together, judging by pictures of them posted by Allen on his Instagram account: 

While the exact timeline of this incident is unclear, it was before Allen and the rest of Sadus embarked on a European tour supporting Obituary. 

Collins has posted a lengthy response video on Facebook, in which she discusses the incident. She is shown crying, and referring to Allen's previous behavior, which includes habitual substance abuse and mistreatment. She alleges that he had taken advantage of her chronic illness and the fact that she still loves him despite repeated abuse. Despite Collins's hospitalization, she claims he abandoned her to fulfill band duties. She later alleged in the video that the rest of the band was aware of her mistreatment, yet didn't intervene. According to Collins it has been difficult to take legal action against Allen due to the fact that he is her caregiver at the moment. 

The full video can be found below: