It’s real easy to overshoot 17R into the approach path of 17L. The runways are very close together. It is not uncommon for 17R traffic to execute 30° or more of bank to keep that from happening. It is one the “hot spots” the FAA constantly identifies as a problem area at Centennial.
Juan Brown did a real good analysis on his channel this morning. It appears the Cirrus was second in line with a plane ahead making a right pattern for 17R. The Metroliner was on long final for 17L. The controller called out traffic to the Cirrus referencing both aircraft, but it’s possible the Cirrus didn’t see the Metroliner on the straight-in approach.
It also doesn’t help the thresholds are staggered and the runways are of different lengths. I’ll bet the pilot of the Cirrus never saw the Metroliner and was just a little sloppy in his turn to final for 17R.
Juan had the radar track up on his site with the ATC overlay. Both GA aircraft made a wide turn to 17R and intruded on the approach to 17L.
Fortunately, they are both alive to learn from the accident. Another possible contributor was the controller who wasn’t very clear in his traffic call outs to the Cirrus. He seemed to be preoccupied or was just going through the motions. His radio traffic seemed less than professional.
Just my two-cents.