UPDATE: Person shot in Dallas Amtrack shooting from Longview
A gunman has been killed, and an undercover police officer and bystander were wounded aboard the Texas Eagle heading from San Antonio to Chicago.
Dallas Police continue to investigate a shooting on an Amtrak train at Union Station station that left an undercover officer and bystander injured and the gunman dead.
According to Dallas Police, three plain clothes narcotics officers, including Senior Corporal Samuel Hussey, were inspecting the Texas Eagle at around 4:00 p.m., when a passenger pulled a gun on them. Police shot and killed the gunman.
Hussey, a 22-year veteran assigned to the narcotics division, was shot in the hand and taken to Baylor Hospital.
"I think he's in good spirits considering everything that happened, and that his injuries are non-life threatening," said Dallas Police Deputy Chief Randy Blankenbaker.
Also shot during the exchange of bullets, an innocent passenger on the train, which was en route from San Antonio to Chicago.
James Railey, says it was his 29-year-old brother, Paul, who was shot in the shoulder. The brothers were taking the train to Longview where they live.
"I'm just very upset and scared, just in fear for my brother, and everything like that, just very shaken up," said James Railey.
Dallas police believe both Hussey and Railey will make full recoveries.
Dallas Police Chief David Brown told NBC 5 he visited with Hussey at Baylor Monday evening and that he is surrounded by family at the hospital, including his wife and young son.
Police said train inspections are routine operations for undercover officers, but that their investigation into what happened, is just beginning.
"We don't know at this time who fired weapons, how many shots, that's all part of the investigation that will occur from this point forward," said Blankenbaker.
The Dallas County Medical Examiner's Office identified the gunman as 32-year-old Stephen Ray Malone, Jr., of Waterford, Mich. (Pictured left in a photo from the Michigan Department of Corrections)
Union Station near Reunion Tower serves DART, Amtrak, and TRE trains, service was stopped at the station for a portion of the afternoon, but all operations have returned to normal.
NBC 5's Greg Janda contributed to this report