I checked Twitter to see if there was any mention of Easley being involved in a death and this was all I found. Not sure about the source but there was literally nothing else on there about it.
The Goat (@TheGoatOne)
4/13/16, 3:37 PM
BREAKING: Sources suggest that #Patriots 2014 1st Round pick Dominique Easley release is related to the death of Ravens CB Tray Walker.
This was the only other thing I found.
CJ Maffris (@SeaJayMaffris)
4/13/16, 6:08 PM
There was a report that police wanted to talk to a Patriots player after the tragic death of Tray Walker in Florida.