CHICAGO (CBS)-– New information about the troubled past of shooter Juan Lopez has emerged.

CBS 2’s Pam Zekman has the story from the pastor who ministered Lopez as a youth and says he was shocked by the news.

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Pastor Steve Laughlin, of the Armitage Baptist Church, says he knew Lopez when he was in junior high and high school

He attended the church from 1998-2004.

Laughlin said he was “really close to him even into adulthood.

Lopez was involved in many church activities.

He was raised by his mother in Logan Square.

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Laughlin says Lopez was “rambunctious and outgoing,” an “extrovert,” but that something “obviously happened” since then.

This week Lopez shot and killed his ex-fiance, Dr. Tamara O’Neal, pharmacist Dayna Less and Chicago police officer Samuel Jimenez.

The pastor says he is “devastated and exhausted” by the news.

Lopez had a rough childhood, he said.

Lopez’s younger brother was killed in the 1990’s in a gang shooting while riding his bike.

The Pastor said he last saw Lopez last week at a bus stop in Logan Square, but he hasn’t talked to him in several years.

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