Kenya attack survivor says gunmen early in attack went to room where Christians were praying

A university student gets on a bus at the gate of the Garissa University College in Garissa, northeastern Kenya, Friday, April 3, 2015. Al-Shabab gunmen rampaged through the university at dawn Thursday, killing over 100 people in the group's deadliest attack in the East African country. (AP Photo/Khalil Senosi) (The Associated Press)

Member of Kenya Defense Forces stand guard at the Garissa University College in Garissa, northeastern Kenya, Friday, April 3, 2015. Al-Shabab gunmen rampaged through the university at dawn Thursday, killing over 100 people in the group's deadliest attack in the East African country. (AP Photo/Khalil Senosi) (The Associated Press)

Joined by Christians, Catholic priests carry the Cross through the streets of Nairobi, Kenya, Friday, April 3, 2015, during the Holy Week celebrations, on Good Friday. On the day Christians commemorate the passion, or suffering, and death on the cross of the Lord, Jesus Christ. (AP Photo/Sayyid Azim) (The Associated Press)

The militants who slaughtered 147 people in a Kenyan school appeared to have planned extensively, even targeting a site where Christians had gone to pray.

Survivor Helen Titus told The Associated Press on Friday that "They investigated our area. They knew everything." Titus, a 21-year-old English literature student, was shot in the wrist and is being treated at a hospital in Garissa, where the attack by al-Shabab Islamic extremists happened.

One of the first things that the assailants did early Thursday, she said, was to head for a lecture hall where Christians were in early morning prayer. Also Friday, a few men walked down a road in Garissa with signs including one that read "We are against the killing of innocent Kenyans!!!! We are tired!!"