When she could not open his office door, I thought he was in there having sex or something. Then when she said "there's something wrong" I thought "daaaag, please tell me he did not commit suicide."
I had hoped that Lane would have decided not to do it after the carbon monoxide attempt failed. But, no.
From what I read, the guys didn't know what they'd be seeing when they opened the door to Lane's office. That's one of the reasons they looked so devastated.