Police seek a motive as Prague mourns the 14 people killed in the nat…

PRAGUE (AP) — Czech police investigated Friday why a student went on a dayslong violent rampage culminating in a shooting at the university he attended in Prague that left 14 dead and dozens wounded.

Investigators believe the gunman in the mass shooting Thursday in a philosophy department building at Charles University also killed his own father earlier in the day, and another man and a baby last week.

Residents meanwhile were grappling with the nation’s worst mass shooting in the heart of the historic capital city. Political leaders, students, friends of the victims and others came together to light candles during an impromptu vigil for the victims.

“A few of my friends study at the philosophy faculty at Charles University,” said Kristof Unger, a student who attended the vigil. “They have been really traumatized by the shooting there and I just wanted to make…