Deputies responded to the call around 3:30 a.m. Wednesday.
A man and woman in their 20s said they had been stabbed while sleeping.
Deputies went into the apartment and found 46-year-old Jimmy Kendall Smith in a closet, allegedly holding a knife.
Deputies used force to detain him. He was brought to a local hospital to be treated for injuries and was to be booked for attempted murder upon his release.
The two victims, ages 21 and 24, were transported to a trauma center.