The man believed to have terrorized Austin with a series of deadly explosions reportedly used Grindr, despite railing against homosexuality.

Police are still not clear on what drove Mark Conditt to mail a series of bombs that killed two people and injured another five before he took his own life. The Austin Statesman reports that police uncovered the 23-year-old's Grindr profile and determined he used it just weeks before his deadly attacks.

But in college, Conditt argued “homosexuality is just not natural.”

“Just look at the male and female bodies—they are obviously designed to couple" he wrote in a class assignment. "I do not believe it is proper to pass laws stating that homosexuals have ’rights.' What about pedophilia or bestiality?”

In other blogposts written between February and May 2012, Conditt argued women should only have sex if they can provide for a child and condemned sex offender registries for "ruining lives."

Conditt was homeschooled and grew up in a conservative Christian community. But several years before his attacks he renounced his faith and became an atheist. Police interviewed two of Conditt's roommates, who said they always assumed he was gay. They also said he locked himself in his room for hours on end in the weeks before the bombings.

In a taped confession, Conditt said, "I wish I were sorry, but I am not."