The investigation will analyze this in detail. The incident occurred in Class B airspace, where ATC and pilots share responsibility for safety. ATC is tasked with separating (and sequencing) all traffic in this airspace, even VFR flights from other VFR flights. However, it's crucial to remember that Class B airspace does not relieve pilots of their responsibilities to see and avoid. According to the ATC recording, the helicopter did report seeing the aircraft, and at that point, it was their duty to prevent a collision.

It's important to note that ATC may still bear some accountability in this incident. If loss of separation already occurred before ATC effectively warned the helicopter about the CRJ, this could be considered a contributing factor.