Story highlights Minnesota's governor calls the deputy's killing a "senseless murder"

Deputy Steven Sandberg was shot dead as he guarded a suspect at a hospital

The suspect also died at the hospital after he was Tasered by a security guard

(CNN) A deputy was shot dead at a Minnesota hospital Sunday after the suspect he was guarding grabbed his gun and opened fire.

Aitkin County Sheriff's Investigator Steven Sandberg, 60, died during an altercation at St. Cloud Hospital in St. Cloud, Minnesota, state officials said in a statement.

The man he was guarding, 50-year-old Danny Hammond, had been receiving medical care at the hospital after a domestic dispute, CNN affiliate WCCO reported

Around 5:15 a.m. Sunday, the suspect "gained control of Sandberg's gun and shot him," the Minnesota Bureau of Criminal Apprehension said.

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