It will take a few weeks before the DuPage County Coroner’s Office completes its investigation into the death of a 30-year old man who witnesses say walked onto the train tracks of an eastbound Metra commuter train at 7:30 a.m. in Lisle and was killed.

Lilse Police Department spokesman Sgt. Ron Wilke said the victim’s last address was listed as Lynwood.

“We were able to look at the identification the man had in his wallet, but at this point we are still trying to determine why a Lynwood resident would be at the Metra station at 7:30 a.m.,” Wilke said.

Lynwood is located in the far southeast suburbs near the Indiana border.

According to witnesses the man did not respond to an alarm horn sounded by the train’s engineer when the eastbound Metra Express No. 1236 approached the Lisle Metra Station at about 70 mph, Wilke said.

“Witnesses said it seemed like he timed it so he walked onto the track as the train was passing,” Wilke said. “The train was traveling at a high rate of speed because it was not scheduled to stop in Lisle.”

More than 1,400 passengers were removed from the train and waited at the Lisle station until another train was summoned to pick them up, Wilke said.

“Train traffic was stopped for a couple of hours, but it resumed again some time after 9:30 a.m.,” Wilke said.

An unidentified spokesman at the DuPage County Coroner’s Office said the investigation into the circumstances surrounding the accident will take at least two weeks to be complete.

“We likely will have to use a few different means to accurately identify the subject,” the spokesman said.

The preliminary cause of death was listed as multiple traumatic injuries, the spokesman said.

Wilke said the man did not lie down on the tracks, but walked upright in front of the train, and was then struck.

“At this time we are not saying whether or no the man acted intentionally or unintentionally,” the coroner’s office spokesman said.

Wilke said the circumstances of the incident were similar to a case on June 2 in which a Plainfield man died after being struck by an eastbound Metra train.

In that case the DuPage County Coroner’s Office ruled Vinod Nair, 51, of Plainfield, intentionally walked onto the tracks and then laid down on the tracks before being struck and killed by a commuter train.

Nair died of massive head trauma, the coroner’s office said.