? A Metro-North Railroad spokeswoman says a man who was found handcuffed to train tracks in Mount Vernon Wednesday morning had sent a distraught text message just before his death.

According to the spokesperson, Marjoere Andres, 34-year-old Bronx resident William Jenkins sent the message to a friend at 3:25 a.m. About three and a half hours later, his body was discovered on the tracks at the Mount Vernon Metro-North station.

MTA investigators say they don?t know if Jenkins committed suicide. It is believed he was hit by at least two northbound trains.

Police also found a bag full of prescription medications, including anti-depressants, on the tracks.

Investigators spent nearly five hours examining the scene before removing the body, which was taken to the Westchester medical examiner?s office shortly before noon. The northbound track was shut down while investigators collected evidence, and trains were delayed for hours.

While investigators don?t believe foul play was involved, they say they are still calling the case suspicious.