Lyntell Washington died from a gunshot wound to the head near Baton, Rouge, Louisiana, when she was seven months pregnant.  Her boyfriend Robert Marks was a married assistant principal, and he was later convicted of her murder.  Solving the case came down to the barefoot witness, Lyntell's 3-year-old daughter.  

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RESOURCES:

• Lyntell Washington Murder: Her Cause of Death in Louisiana | Heavy.com
• ABC 20/20 S45 E3 The Barefoot Witness
• Angola Prison, One of the Most Brutal Prisons in the US (unbelievable-facts.com)
• Robert Marks Now: Where is Lyntell Washington's Killer Today? Update (thecinemaholic.com)
• Daughter and twin sister of slain teacher take stand as murder trial begins for former school administrator (msn.com)
• Inside the brutal murder of pregnant teacher Lyntell Washington in front of 3-year-old daughter who helped crack case | The US Sun (the-sun.com)