I thought of giving deal a hit. I got into the boat and started to chase Dimitri. Little Jacob's heli came to pick me up. After reaching to the heli, I needed to press Space (Default) button to get in the heli but the game went slow like hell that I got in the heli when I reached at Star Junction. When I got the Driving seat, message came,"Dimitri got away"
Please help. I found many videos saying that there are many bugs like the heli flys off before Niko can get in.
You all could post a video about how Niko gets in that heli.