I am sorry for your loss. The family needs to consult with a nursing home abuse and neglect attorney regarding the care your brother received. The ultimate goal is to hold the nurshig home accountable for any wrongdoing not only to compensate for the loss of your brother but also to prevent this from happening to someone else in the future.
I am very sorry for your loss.
If the nurses failed to comply with the standard of care and your brother suffered an injury as a result thereof, there is certainly a case.
At this stage you need to get a copy of the nursing home chart and have a nursing home attorney review it.