The context of the following conversation is While going through the death certificate Ash found a cause of death possibility that was not noticed by the officials.:
Ash says I just checked the death certificate and it looked like he may have had a heart problem. ..
The friend responds Did you know about that?.
Ash responds No, I wonder if he may have had coronavirus. He was sick a few weeks ago..
The friend responds Covid-19 can cause heart damage. You should try to get him tested  posthumously..
Ash responds I will definitely see if I can do that..