Hats off to the patriots that created the qresear.ch website. By using this tool I found that by searching Q's posts for the word, "heart" (in relation to JPB), here's what I found, in order:
#634
2018-01-27 20:31:04 (UTC+1)
:heart attacks can be deadly.
Q
#635
2018-01-27 20:37:21 (UTC+1)
>>181208
Mourn.
Murder.
heart attack.
Coincidence?
Q
#677
2018-02-08 00:39:32 (UTC+1)
>>297464
heart attacks can be deadly.
Q
Notice the dates. The first instance of heart said, "heart attacks can be deadly". Very next post is where I want to point out something interesting: Mourn, murder, and then a repeat of the phrase in the last drop. Odd that it was posted on the 27th of January when JPB supposedly died on Feb 7/8. Was there intercepted intel on the plans for JPB, or did he actually die on the 27th?