Wiltshire Police are appealing for witnesses following an assault in Swindon. The incident took place in Okus Road, Old Town, shortly before 2am on Saturday 21st December 2013. A lone female was walking home when she was grabbed from behind by an unknown male attacker. Wiltshire Police are appealing for witnesses following an assault in Swindon. The incident took place in Okus Road, Old Town, shortly before 2am on Saturday 21st December 2013. A lone female was walking home when…