Lincoln police have confirmed that a man is dead after being shot by a BNSF special agent at the south Lincoln Chick-fil-A Tuesday. 

Emergency crews were called to the restaurant around 1:07 p.m. Tuesday in what was originally classified as a traffic collision, after the suspect, who has not been identified other than that he is from Lincoln, drove his truck into the building near 27th and Pine Lake Road. 

Witnesses say the suspect was a customer who was disgruntled with the service at the restaurant and left the building. They say he then came back with his pick-up, and drove through the front. 

Police said none of the customers or employees inside the restaurant were injured.

The agent who shot the man was in the drive-thru getting lunch, and police said he was in a marked vehicle and in his uniform. Police Chief Jeff Bliemeister said the agent confronted the man, who was escorted outside, before he got in his truck and rammed the restaurant. 

Bliemeister said at this time they have no information on a motive. Bliemeister said search warrants were carried out at the man's residence, and that they had prior contacts with him. However, at this point in their investigation, Bliemeister said there is no indication that the man there for any reason other than as a customer. 

Bliemeister said the suspect was armed but not with a firearm. 

Investigators are still processing the scene and analyzing evidence. 

Anyone with information or video of the incident is encouraged to contact Lincoln police.

A BNSF spokesman told Channel 8 Eyewitness News the company is not involved with LPD's investigation. The spokesman declined to comment further, but did say the agent involved is an eight-year veteran.