Now the mother, 73-year-old Myrtle Brown, has been found dead near her home in Chicago. Police said in a statement that they have opened a homicide investigation after doctors determined that the body had been subjected to violence.
Meanwhile, Sergio Brown is still missing.
35-year-old Brown played in the NFL from 2010-2016. Then he represented the New England Patriots, Indianapolis Colts, Jacksonville Jaguars and Buffalo Bills, among others.