MIAMI BEACH (CBSMiami) – A homicide investigation is underway Wednesday night after Miami Beach police found a dead body in a home where a barricaded man surrendered.

It all started at around 6 p.m. when a woman worried about a friend she hadn’t seen since mid-October went over to her home in the 7400 block of Carlyle Ave.

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“The person who contacted police indicated that she had not seen her friend since about mid-October,” explained Miami Beach police spokesperson Ernesto Rodriguez.

The caller said she’d gone to check on her friend only to get the door slammed in her face by the man police said is believed to be the victim’s husband.

“She attempted to knock on the door. The male inside slammed the door on her, which is when she then contacted police,” Rodriguez said.

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When police arrived they tried to reason with the man inside.

At one point they saw a disturbing image through the window.

“They had a visual line of sight of him, who was laying on a bed with a knife,” Rodriguez said. “Initially refused all commands, all commands from law-enforcement personnel on the scene.”

But finally, their negotiation tactics paid off. He surrendered and is now being questioned by police.

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Police say they have a long night ahead as they try to find out what happened to the woman. They have not determined how long she’s been dead.