Austin Robert Drummond, 28, faces charges in the deaths last month of James Matthew Wilson, 21; Adriana Williams, 20; Cortney Rose, 38; and Braydon Williams, 15.

Drummond's criminal past stretches over a decade into the past, as he was convicted of aggravated robbery in 2014 after robbing a convenience store in Jackson, Tennessee the year prior, according to WREG-TV in Memphis. The suspect spent 13 years behind bars, during which he picked up an additional charge for retaliation, according to Fox News.