The Galveston County Medical Examiner's office says toxicology results are pending on 17-year-old Irvin N. Cruz.
Some railroad workers Monday night located his body along a line near Hitchcock.
Sheriff's Maj. Ray Tuttoilmondo on Wednesday told the Galveston County Daily News that authorities do not suspect foul play and there are indications that the death was a suicide. Tuttoilmondo also says investigators have not totally ruled out that the death was an accident.
Cruz was from an unincorporated part of Galveston County known as Freddiesville.