matched effie ratley's head wounds. s blood on the paper towels and the heavy work gloves found in michael's truck but they didn't find any dna inside the work gloves. so scientists swabbed the inside of the latex gloves for skin cells. >> michael ratley's dna was recovered from the latex gloves. it was just a logical assumption that michael ratley had worn the latex gloves and then put the larger heavier rubber gloves on and then wielded the murder weapon in killing his wife. >> prosecutors believe michael ratley had planned his wife's murder for months. and had made more than one attempt on her life. the first could have been the incident in the car with the mouse which almost caused her to crash on the interstate highway. the mobile home fire was also suspicious. prosecutors believe michael disconnected the smoke alarm and started the fire near the baby's diaper warmer while effie was asleep. michael grabbed their infant son and ran outside. the blaze blocked effie's escape. but family members and neighbors saw the sm