How would he be responsible for the guy offing himself? This sounds a bit like manipulation. If OP is getting pissed of about it to the point where he wants to

How would he be responsible for the guy offing himself? This sounds a bit like manipulation. If OP is getting pissed of about it to the point where he wants to leave, he should definitely say something to his manager. You shouldn’t just bottle this shit up and let it keep angering you every day. As long as OP tells the truth there isn’t any problem. The only difficulty is in /not/ coming off as a jealous co-worker who is just out to hurt people. The guy has been fucking himself and his team over by not working and it needs to stop.