That's going to be a difficult question to answer.

Overall, it's been a good week. We're very pleased. I've never seen this many people in the city over seven days, but it went very well because everyone has been friendly and cooperative.

We're the backups to them [the NFL-contracted security companies]. We lead the operational planning, but we let them handle the security issues. The law-enforcement agencies handle the sweeps and make sure the location is free of any incidents.

We did make a turn for the better at some point.

Neighbors were saying that dog was very protective of the woman. For some reason, it snapped.

It's clear that this is not a case of foul play.

We have a lot of help from federal and local law enforcement, some of whom have worked other Super Bowls, and are coming into town. We're borrowing their expertise.

We monitored intelligence reports. There were no specific threats to the city of Detroit or any Super Bowl venue.