A social media star who describes himself as a "professional snake wrangler" feared he would die after being bitten ... Orin films the bite and the snake and says: "Welp, I'm cooked.

The same antivenom is used for every rattlesnake bite, regardless ... get medical help within 30 minutes," Meyers said. "But you do have hours. You're not going to die in minutes.

Finch says it is the third known death in Missouri by the bite of a copperhead. The others were in the 1960s and in 2012. Finch says Levins was at a cabin, saw the snake and pointed it out to his son.