Chilling moment coldblooded assassin executes victim with gunshots to the head in front of horrified passengers in packed German train station

This is the shocking moment a cold-blooded assassin executes his victim with gunshots to the head in front of horrified passengers at a packed German train station.

CCTV footage shows the suspect, 54, approaching the 27-year-old man from behind at the busy Frankfurt Central Station, in the German state of Hesse, around 9pm on August 20.

Behind the horror shooting is a bloody family feud, according to newspapers in Turkey, where both men are from. The victim had allegedly killed the nephew of the gunmen, who took revenge by shooting him several times. 

The suspect, 54, can be seen drawing his gun in the video footage before shooting the victim in the head, causing him to collapse to the ground while dozens of shocked witnesses ran for their lives.

As his victim was already lying on the ground, his callous killer moved in closer and fired several additional shots before attempting to flee the site and casting the weapon aside.

CCTV footage shows the suspect, 54, approaching the 27-year-old man from behind at the busy Frankfurt Central Station, in the German state of Hesse, around 9pm on August 20

The suspect drew his gun and shot the victim in the head, causing him to collapse to the ground while dozens of horrified passengers who witnessed the brutal attack run for their lives

As his victim was already lying motionless on the ground, his killer still moved in closer and fired several additional shots before attempting to flee the site and casting the weapon aside

Turkish media report that a bloody family feud between the Kurdish families of the 54-year-old suspect, who operated a kebab shop in Germany, and the 27-year-old victim was the cause of the attack.

The victim had reportedly killed a businessman, who he blamed for the murder of his brother in 2016, in Antalya, Turkey, in May this year before fleeing to Germany. 

The businessman's uncle tracked the 27-year-old down and allegedly killed him in the train station in an act of revenge, according to Turkish media.

Police caught the gunman a few metres away from the crime scene on a nearby platform, and arrested him without resistance. 

The murder weapon, a pistol, was discovered during a later search of the station.

The station was closed to all train traffic for about 25 minutes until the police operation was completed.

The station was closed to all train traffic for about 25 minutes until the police operation was completed

The crime scene was cordoned off around platform 9 in Frankfurt am Main, in the German state of Hesse

Frankfurt police said in a statement: 'Help came too late for the 27-year-old, who died at the scene. Both men are Turkish citizens.'

Police are now investigating whether the two men knew each other and are working to determine a possible motive for the shooting.

Frankfurt Public Prosecutor's Office spokesperson Dominik Mies said: 'The investigation is still in its early stages, so I ask for your understanding that we cannot yet say anything about the motive or the relationship between the suspect and the victim.'

Police added: 'The 54-year-old suspect will be brought before the investigating judge of the Frankfurt am Main District Court today by the public prosecutor's office, who will have to decide whether to order him in custody.'