taking the 46-year-old father inside, they took him into custody. you can hear one of the officers laugh. >> lamb ber died later that night. this was in 2013. his autopsy indicates it was an accidental drug overdose. acute cocaine intoxication, but the family just obtaining new information blames police and is now filing suit. a hearing in federal court is set for today. our correspondent pamela brown takes us through the final moments of lambert's life. >> reporter: this police video shows three officers in south boston, virginia, tasing a a man outside a hospital emergency room. shortly after, that man died in police custody.