KANSAS CITY, MO (KCTV) -- More money is now available for anyone who has information about who killed a construction worker in downtown Kansas City this past spring.
Johnathon Porter was shot and killed on site at Ninth Street and Brooklyn Avenue.
He was working for InfraSource on a gas line replacement for Spire Energy.
Police believe the gunman walked up to him, asked for a cigarette, and when he didn't get one, shot Porter several times in the chest.
Here is video of the man police want to talk to:
He was scene wearing a blue hoodie and grey pants.
If you have any information that leads police to an arrest, the reward is now up to $12,500. Call the TIPS Hotline at 816-474-TIPS.