First, the date numerology.
5/2/2017 = 5+2+20+17 = 44 (Kill) (Execution)
5/2/2017 = 5+2+2+0+1+7 = 17 (Kill) (Casey)
5/2/17 = 5+2+17 = 24 (24-year-old)
Second, today is the 122nd day of the year, and Oakland is on the 122nd Meridian.
The fact that he was the 34th round pick stands out. '34' connects to murder. One wonders if his batting average might have been why he was singled out as well, .322.
The name Oakland Athletics also connects to 'death'.
This death starts the month of May, the second month of baseball.