sarara sidner isis on ththe grg. head t there for t the . >>> right now, law enforcement at every level, state, local, federal, are still searching for the gunman in what is now the worst mass shooting ever in maine. the hunt for robert card has left the state paralyzed. schools and businesses closed down again today. multiple communities under shelter in place orders for a second day. and we have new reporting coming in that investigators have recovered a cell phone that belonged to card, as well as a note that he left behind. joining us now, cnn chief law enforcement intelligence analyst john miller, and casey jordan, criminalologist and behavioral analyst. john, the cell phone found a note left behind, but it does not explain a motive, according to evan's sources. what does that add to this, help or complicate? >> well, the fact that they recovered a cell phone, and the fact that there was a note are both indicators of preplanning. now, most active shooters have a planning arc. this is just the statistics across t