Marc Shawn Walden was convicted in the 35th District Court and sentenced to life in prison and fined $10,000 after a jury found him guilty for two felony offenses.

Walden was charged with possession of a controlled substance and felon in possession of a firearm after members of the Brown County Sheriff’s Office discovered the drugs in a backpack during a traffic stop. The drug charge was a first-degree felony due to the amount found in Walden’s possession.

According to District Attorney Micheal Murray, Assistant District Attorney Elisha Bird presented the jury evidence that Walden had about 75 grams of methamphetamine along with a stolen firearm from the San Angelo Police Department.

During the punishment phase of the trial, Bird presented evidence regarding additional narcotics trafficking Walden was involved in including his connections to a Mexican drug cartel.

Investigators with the Brown County Sheriff’s Office stated the amount of narcotics seized in this case was one of the largest quantities of methamphetamine investigator Carlyle Gover has recovered during his career.

District Judge Steve Ellis presided over the case and also heard evidence of Walden’s prior felony convictions for possession of a controlled substance, as well as several other misdemeanors convictions.