Jerry Sutt, 50, arrested during Tennessee traffic stop.
Police say robbers took cash but also demanded alarm codes to businesses owned by couple.
Homeowner killed after confronting intruders.
Third home break-in suspect was shot and killed Tuesday.
Happened Wednesday in north St. Louis.
Woman fired at intruder who pepper-sprayed her, forced his way inside.
Two suspects, 21 and 16, charged with armed home invasion.
Woman who lived in home in 5700 block of Pamplin was shot dead on her porch.
Held occupants at gunpoint while taking computers, rummaging through home.