You can't see HIV under a microscope. Well you can't see any virus under a microscope, but I mean - you cannot detect HIV in any way. To date it has not been isolated.
To isolate a retrovirus you need to:
A) Create an isolate. i.e. create a culture from putatively infected material and take a micrograph from the 1.16 density band which shows ONLY particles with the correct characteristics of an exogenous retrovirus. Your band then contains an isolate of the putative retrovirus.
B) Prove that what you have is viral. This means that it not only looks like a virus, but is also infectious. You must be able to take your isolate, infect something with it, grow more virus, and be able to get another picture/proof of isolate.
This process has not been carried out sucessfully. The AIDs industry has not managed to isolate the HIV virus, and its been over twenty years now. You have to wonder what the hold-up is.
I am indeed saying that HIV has not been isolated and proven to exist
Please don't fall into the trap of attributing strange motives to me. I am sorry to say that if he died when your post suggests he died, your HIV-positive friend almost certainly (90% chance) died from liver failure. He was killed with multiple 1000 mg doses of the lethally poisonous chemotherapy drug AZT. This is what I mean by a disease with an iatrogenic cause (iatrogenic = caused by doctors). No virus need apply.

Marburg virus under the microscope. CDC
No offense, but this is a thread about a lethal outbreak of a hot virus, not about HIV.
If you don't mind, I'd appreciate you getting on to some other thread more appropriate for the discussion you want.