.
Ferguson said "when he didn't pick up the phone for me Tuesday morning, I knew something was wrong."
He added that Devantae's brother motivated her to call the missing man, and the call went to voicemail.
She called his brother back and asked who Devantae was with, and the brother reportedly said "Jessica picked him up," according to a video interview with WYFF.
Investigators said they spoke with Strachan the day after Griffin was officially reported missing, March 31.
The sheriff's office said they eventually learned that Strachan gave them misleading information after this conversation, and she then became a person of interest.
Investigators said they asked her to come back in for another interview, but she left for without notifying officials.
They obtained a search warrant and entered her home that day.
The following day, the sheriff's office obtained an arrest warrant for obstruction of justice, and she was reportedly arrested in Miami, Florida.
Family told the outlet that the pair have a volatile history.
Griffin's aunt, Beverly Griffin claimed the family has heard Strachan threaten Devantae before in what she describes as a "toxic relationship."
"It's been a rollercoaster of emotions," Beverly said. "We just want her to start talking so we can bring him home."
Anyone with information regarding Devantae Griffin's disappearance, contact Investigator Megan Bennett at the Spartanburg County Sheriff's Office at 864-266-4494.
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