(St. Paul, MN)  —  Three people are in custody after leading police on a chase from Minneapolis to St. Paul on Saturday.  Authorities say the pursuit began before midnight when MPD noticed a vehicle that matched the description of one possibly involved in a homicide.  After the chase, the vehicle stopped near Central Avenue and Mill Street before four people tried to flee on foot.  Only three of them were taken in.  Police also say three firearms were recovered.