DAVENPORT, Iowa — Standing trial for a third time, Seth Techel has been convicted of first-degree murder and nonconsensual termination of a pregnancy.

Techel was on trial accused of shooting and killing his pregnant wife, Lisa, at their home in Agency in May 2012. Lisa was 17 weeks pregnant with the couple’s first child.

Prosecutors claim Techel, then 23, killed his wife in order to continue an affair with another woman. Techel’s defense says a troubled neighbor, who has since died, could have been the killer.

Two previous trials have already been held and in both cases the juries were unable to reach a verdict. They were declared mistrials.

The jury began deliberating Wednesday afternoon following closing statements.

Techel faces a mandatory sentence of life in prison without the possibility for parole.