Dane van Zyl, 21, a student in business management at Unisa, was attacked and stabbed several times in the neck, chest and legs between 07:00 and 10:00 in his home in Plein Street, which he shared with his brother and his brother's friend.
It was the second murder in Woodstock in three days. A man, 25, whose name had not yet been released, was stabbed to death in Albert Road on Tuesday night.
"When I unlocked the front door, I found my brother in a pool of blood on the floor. There were several knife wounds to his body. There was blood everywhere," he said.
The attacker, who had a back pack with him, managed to pull free, dropped the back pack and ran away.
In the bag were DVDs, a PlayStation and computer cables. Uriah confirmed to police that these belonged to them.
"The attacker is a young, short man and his arms are full of tattoos."