A hiring manager has just interviewed a job candidate who meets the definition of a qualified person with a disability. The candidate is clearly the best candidate for the job, but suffers from bipolar disorder. A few years ago, the hiring manager hired a candidate with bipolar disorder for a different job, and that person was later involved in an incident of domestic violence that occurred in the workplace. Based on that experience, the hiring manager believes that it would be in the best interest of the company and the current employees to not hire this particular candidate due to the risk of violence presented by this current job candidate.

Please indicate whether you believe that the hiring manager is justified under the ADA in making this decision, and briefly explain your reasoning.