Executives in blue jeans sit cross-legged on the floor, surrounded by big boy toys like 3D printers and large tables with Exacto knives and foam core for people to congregate and make fast, rough prototypes.

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The V-TRUX line of big boy toys includes modified GMC trucks, SUVs and vans, customized to include a Volt-like powertrain that enables up to 40 miles of electricity-only driving before switching over to the onboard 4.8 liter V8.

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Olson also said Dykes has allowed police to deliver coloring books, medication and toys for the boy.

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During the six-day standoff, officials talked to Dykes and delivered medication and toys to the boy through a 4in (10cm) ventilation pipe.

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During the six-day standoff, negotiators talked to Dykes and delivered medication and toys to the boy through a 4in (10cm) ventilation pipe.

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While the FBI has largely been tight-lipped about how it monitored Dykes' behavior and mood in the days leading up to the rescue, the latest revelations suggest authorities were dealing with an abductor fully prepared for more violence even as he allowed police to send food, medicine and toys into the bunker for the boy.

NPR: FBI: Ala. Captor Rigged Bunker, Waged 'Firefight'

Nothing captured it all more forcefully than the sight of a young boy in a nearby village pushing along one of those simple homemade toys with wheels and a long handle that you find across so much of the world.

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When he was a little boy, Karp showed an early fascination with electronics and liked to pull toys apart and reassemble them, his mother recalled.

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