Kira tapes

The Kira tapes are four video tapes that Misa sent to be broadcasted on Sakura TV.

Plot
Misa attempted to contact Kira using video tapes. She sends four tapes to Sakura TV, and the station reports live that they have received the tapes four days later. A host at the station says that there is no doubt that the tapes are real and not a hoax.

He reports that the first tape contained a voice that predicted the death of two arrested criminals and that last night the criminals both died of heart failure at 7:00 pm. The host states that because only Kira could perform such an act, they are sure that the tapes are from Kira.