Busy traffic patterns are dangerous - that's where we need to have our head on a swivel and good SA. I've flown into San Marcos many times over the past 40 years and there are moments where it's totally empty and those where it's very busy and I pulled out of the pattern because I just didn't have a good sight picture of what was going on.
Really glad that the three people involved didn't seem to have major injuries - that's pretty rare for a midair on final that looks like this photo at the end. The Rocket is the burning pile on the left. Apologies for the quality, I just did a screen grab of the KVUE news video.
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