MIAMI (CBSMiami) – Pembroke Pines police responded to a residence on Northwest 106th Terrace, where they found a dead man inside. They are calling this a ‘suspicious death.’

Police said they have Michelle Gibb, 57, in custody. They believe she may have been involved.

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Authorities said Gibb is mentally unstable, endangered, and armed

“This is a very quiet neighborhood. I have lived here for 20 years. Next thing I know they close the streets and I heard rumors that there was a murder. And it was confirmed later,” said neighbor Rose Marie.

Friday night, police arrived at the residence on Northwest 106th Terrace and confirmed a man was dead inside the apartment. Police said they believe the man was murdered.

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Rose Mary, who lives just blocks down, says the couple was staying in her friend’s apartment.

“They thought the couple was resting downstairs and when they went downstairs later they found the man.”

Pictures taken from a surveillance video show Gibb wearing a green shirt and tan shorts with a backpack.

Rose Mary says she was casually walking down the sidewalk just moments after the man had died.

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“Spoke to the family… they were very shaken up.”

Jessica Vallejo