A grand jury is expected to determine whether charges should be filed in the Nov. 15 train crash in Midland, Texas, that killed four wounded veterans riding a parade float.
Investigators are still picking through the particulars of what happened during the accident, which saw a Union Pacific train plow into a flatbed trailer carrying veterans and their wives to an honorary banquet. Five other people were seriously hurt.
The driver of the truck that was pulling the trailer, Dale Andrew Hayden -- a veteran himself, who is suspected of driving onto the train tracks while crossing warnings were going off -- still has not been interviewed by National Transportation Safety Board investigators, board spokesman Peter Knudson told the Los Angeles Times on Thursday.
Hayden's attorney, Midland-based Hal Brockett, did not respond to a message seeking comment Thursday.
Midland County Assistant Dist. Atty. Eric Kalenak told the San Antonio Express-News the grand jury would be impaneled in the state's 385th District Court on Wednesday and would determine whether to file charges or ask for more evidence.