If I am reading the update right TMZ is reporting that:
2:01 PM PT — Officials say Kevin Ward Jr. was high on marijuana at the time of his death.
No other information was given.
Read more: http://www.tmz.com/2014/09/24/tony-stewart-cleared-by-grand-jury-in-race-track-death/#ixzz3EGSv1hBW
Meh, they can’t tell from toxicology tests if he was high at the time, or smoked a joint three weeks ago.