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About John Grinnan
John Grinnan is a trial attorney at Arnold & Itkin LLP in Houston, focused on wrongful death and catastrophic injury cases. He grew up in Dallas, studied government at The University of Texas at Austin, and earned his JD cum laude from South Texas College of Law, graduating in the top 15% of his class. Before joining Arnold & Itkin in 2021, he practiced at Clark, Love & Hutson; Abraham, Watkins, Nichols, Sorrels, Agosto & Friend; and Perdue Kidd & Vickery, building nearly a decade of experience in pharmaceutical product liability and personal injury litigation. He helped secure a $185 million settlement for seamen injured during a severe weather event.
Proven verdicts and settlements
A Harris County jury awarded Mary Johnson $557 million against Union Pacific for a 2016 Houston train strike that cost her a leg, several fingers, and left her with a brain injury, a figure the trial court later cut and an appeals court reversed for a new trial.
Walter Jackson, 48, was a rigger on an offshore platform 65 miles south of Lake Charles. The crew was lowering sections of corroded firewater pipe when the manila rope holding a 131-pound section broke. He was standing in a landing zone nobody had cleared, and it killed him instantly.
Prior results do not guarantee a similar outcome. Each case is unique and depends on its own facts.
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