Cancer patient shares final hours with slain best friend killed in alleged carjacking Cassie Daniel speaks with Fox News Digital regarding the alleged murder of her friend, Marietta Allison, in an apparent carjacking as Allison was taking her to chemotherapy treatment in Houston, Texas. NEW You can now listen to Fox News articles! A Texas woman is dead after being shot in an alleged carjacking while visiting her cancer-stricken best friend.  Marietta Allison traveled from Austin to Houston to