"iPad Video Chat Catches Massachusetts Murder"

I suppose that 20 years ago if the daughter and her boyfriend were on the telephone, the same thing would have happened, though the fact that the boyfriend actually saw some of the event makes the evidence even stronger.  From ABC News:

A Massachusetts man accused of stabbing his girlfriend to death as their daughter's friend watched via an iPad video chat is being held in jail without bond today.
Christopher Piantedosi, 39, allegedly showed up at the Burlington, Mass., home of his longtime girlfriend Kristen Pulisciano's on Thursday and got into a raging argument with her in the kitchen.
The couple's 15-year-old daughter was in her bedroom video chatting with a friend on her iPad. She heard the commotion and went to check on her parents, according to authorities.
The girl found her father holding a knife and her mother fled to the girl's bedroom, shutting the door behind her.
"The defendant then kicked in the door, threw the victim on the bed and began stabbing her with a butcher knife and it was visible to the daughter's friend," Middlesex assistant district attorney Nicole Allain said in court.
The daughter's male friend witnessed the attack on video. . . .