moment vividly. >> so that 911 tape made an impact? >> yeah, it did, because when you hear someone pounding on the door like that, i think you know his record by now. >> nicole's sister denise tells prosecutors she has seen simpson beat nicole, in person. >> he's grabbed nicole, told her to get out of his house. wanted us all out of his house. picked her up, threw her against the wall. picked her up and threw her out of the house. >> however, defense attorney robert shapiro counters with a completely different image of o.j. simpson. here he is with the brown family just hours before nicole's murder. >> we played for the jury the june 12th videotape, where you saw o.j. simpson at 6:00, 6:30 in the evening of june 12th. he was kissing the brown family,