NEW ORLEANS (AP) — A Transocean employee who survived the Deepwater Horizon rig explosion testified at the Gulf oil spill trial Tuesday that a subordinate killed in the blast was one of the workers who apparently missed signs the well was about to blow out.

Randy Ezell, the first rig worker to testify in person at a trial designed to assign blame for the 2010 disaster, said Jason Anderson was a “top-notch” toolpusher who would have done everything in his power to prevent the blowout.