Pope Francis's death at the age of 88 means the Catholic Church must choose a new leader. Here's how cardinals elect the next pontiff at the conclave.

The papal conclave will commence in May, when the cardinals will meet at St. Peter's Basilica and pray for the wisdom to select the next pope.

Bishop Joseph Strickland, the outspoken Texas cleric removed from his post by Pope Francis last year, responded to the pontiff's death Monday with a message of prayer and spiritual solidarity, calling on the faithful to remember their role as intercessors for all souls.