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About Us

Our Elders & Pastors

Todd Nighswonger

Elder and Senior Pastor

Todd grew up in Wyoming in a home committed to Christ, but it wasn’t until the spring of1993, while attending college at Montana State University, that he understood the greatest message ever, the Gospel, that changed his life forever. Around the same time, he met his wife Lisa, and together they began to develop a heart for students. Todd soon began to pastor Junior High, High School, and college students in Wyoming and California for over ten years, and continues to love speaking to them.

In 2002, Todd believed it was time to attend seminary, so he enrolled at The Master’s Seminary. After visiting Cornerstone for a few weeks, Todd and Lisa recognized that this church had a heart similar to theirs for God and His mission. Just a few months later, Todd was asked to come on staff as the high school pastor. As he was finishing seminary, Todd was asked to shift roles on staff and served as the Executive Pastor. He did so for a few years, and when the founding pastor, Francis Chan, felt called to the San Francisco area, he was asked to become the Lead Pastor.

During their time at Cornerstone, Todd and Lisa began to develop a heart for orphan care. In 2005, they began to take foster kids into their home, and from that ministry they adopted three of those kids that they love and adore.

Todd’s heart for Cornerstone is that we would be a family of men and women who know God rightly, worship Him intimately, are transformed by Him fully, and are unleashed to join Him on His amazing mission.


Mike Steinwender

Elder and Executive Pastor

Mike joined the pastoral staff In 2009 to support and assist Todd Nighswonger in the management and operations of the church. Mike has been a serving at Cornerstone Simi since 2000 and has been shepherding the community and the neighborhood he lives in. Mike enjoys developing leaders to further His Kingdom.

Both Mike and his wife Vicki grew up in Simi Valley. They were maried in 1981 and have raised four children, Chris, Jenny, Tony and Nick.

Mike holds a Bachelor of Science degree in Business Management from California Lutheran University, Thousand Oaks, a Masters of Biblical Studies from Colorado Theological Seminary and is currently working on his Doctorate in Biblical Studies. Before coming to Cornerstone, Mike held various Executive Level positions in the Financial, Technology and Healthcare industries.


Terry Earwood

Elder and Family Pastor/Local Display Pastor

Terry has been at Cornerstone since 2006, and currently serves as an Elder and Pastor over Family Ministry, which includes both Student's and Children’s Ministry. Prior to coming to Cornerstone, he served on the staff of the high school ministry of Campus Crusade for Christ in Atlanta, GA for 12 years.

He has been married to Sheila, his high school sweetheart, for 27 years. They have three children, Elyse (23), Elijah (13) and Ella-Grace (10).


Pat McCoy

Elder and Care Pastor

Pat and Linda McCoy have been serving at Cornerstone since 1999. Pat serves as one of the elders and is the Care Pastor. He also oversees the Biblical Counseling Center along with his wife Linda, who has a masters degree in biblical counseling from The Masters College.

Pat and Linda have seven grown children with currently six grandchildren and one on the way. Pat enjoys motorcycles and cars, and Linda loves to read and research.


Chris Hay

Community Group Pastor

Chris has served at Cornerstone in various roles since 2011, but joined the pastoral staff in the fall of 2015 as Pastor of Community Groups.

Chris has served in the pastorate for nearly 30 years, both in associate and senior roles, before coming to Cornerstone. He is passionate about seeing people live out a radical life-changing commitment to Jesus, and he is deeply burdened for the spiritual health of pastors. He and his wife Dawn love to minister together, and are the founders and directors of Zarephath Ministries (, which provides spiritual retreats for pastor couples.

He is a graduate of Moody Bible Institute, earned a Bachelor’s Degree in Bible from Grace College, and a Master of Divinity from Grace Theological Seminary. His hobbies include reading (history, biography, Puritans, mystics), woodworking, and continually remodeling their home. Chris and Dawn have two amazing married adult children.


Christian Burkhardt

Equipping Pastor

Christian has been serving as a pastor at Cornerstone since 2007. He currently serves as the Grow Pastor, leading and equipping the church to “grow in our understanding of God and His mission.” He is passionate about teaching God’s Word and helping believers enjoy and understand it for themselves.

Christian began attending Cornerstone as a college student in 2004, and has served within Children’s and Student Ministries. He and his wife Jennifer have been married since 2006, and have four young children: Jonas, Jude, Josie & Lucy. They enjoy having people in their home, do-it-yourself projects, and rooting for the Dodgers!

Christian’s heart for ministry is best expressed by Colossians 1:9-10, “that you may be filled with the knowledge of his will in all spiritual wisdom and understanding, so as to walk in a manner worthy of the Lord, fully pleasing to Him, bearing fruit in every good work, and increasing in the knowledge of God.”


Billy Kappen

Worship Pastor

Billy came on staff as our Worship Pastor in January 2015. For Billy, music is, above all, a way to express love and community. As a child, he and his family would gather to sing around the record player. In later years, he grew to lead worship at his local church.

His musical gift developed around the people and places he loved most. Today, he continues to lead others into authentic, meaningful worship. It is his desire to give others the same deep connections to faith and love that music has provided in his own life.

While creating music is one of William’s greatest passions, he is also motivated by seeing change take place in the lives of others. He explains: “In my experience, God usually touches us through community. I am committed to the workings of the local church and the redemption that takes place when the church community lives a life that reflects the revolutionary love of Jesus.”

Billy has been married to his beautiful wife, Sarah, since May of 2013.


Dan Lovejoy


Dan and his wife Carol have been part of Cornerstone ministries since 1999 and he has served as an elder since 2006. He is a California native, was raised in a home committed to following Jesus, and has a number of pastors in his family.

Dan has always had a heart for working with marriages, helping them to reflect Christ well. He has worked with many ministry areas over the years including teaching classes, Men’s Ministry, student ministries, church finance, counseling, and small groups. Currently, he is helping to lead a community men’s study and teaches in the Cornerstone 101 class.

Dan and Carol have been married 31 years and have three children, Beverly, Becca, and Tommy. He is the Tax Director of a Business Management firm.


Jon Reid


Jon spent his early childhood on the east coast before moving to Simi Valley in Junior High school. He completed his graduate degree at California State University, Fresno. Jon married his wife Keri 17 years ago and they have been at Cornerstone since that time. They have been blessed with many opportunities to know God more and make Him known through small groups, church planting, teaching, missions, outreach and ministry growth.

They have four children, Ethan, Alyssa, Mason and Jackson that all love to take road trips, spend days at the lake and hang out with friends and family.

Jon serves as an Elder at Cornerstone and works as physical therapist while helping to manage a local healthcare team.


Brent Siemer


Brent and his wife Debbie have been part of the Cornerstone family since 2012. They are both native Californians and were married in 1979 after having met on a church bicycle trip. Brent’s career in civil engineering has taken him and his family up and down the coast of California. He is now a Deputy Director of Public Works with the City of Simi Valley.

In his past churches, Brent has served as a Sunday School teacher, worship leader, deacon and elder. In 1991, the Siemer family spent a school year in the Philippines at Faith Academy where Brent and Debbie were dorm parents for 17 teenage girls. Before becoming a Cornerstone Elder in 2016, Brent served on the Cornerstone Global Team.

In Brent’s words, “My testimony of the life and power of the Lord Jesus Christ is that He consistently achieves His purposes. Regardless of my ‘victories for Christ’ or my dismal failures, the Lord continues to show His mercy and love to me and continues to draw me unto Himself. I am so happy that He was called my family to Himself as well. Debbie is His spokeswoman of truth in the lives of several women. Our eldest, Christin, serves in music ministry with her husband in Grass Valley.Our son, Jeremy, has served as youth pastor at our former church in Eureka is now pursuing an education in nursing. And our youngest, Bethany and her husband Josh are serving with Ethnos360 in Papua, Indonesia. We have been given nine grandchildren who are living in homes that revere the Living God. Soli Deo Gloria.”


Josh Walker

Elder (and Vice President and Academic Dean of Eternity Bible College)

Josh Walker has been a part of Cornerstone since 2003. He is married to Carla, a critical care nurse, and has two children. Their family joined Cornerstone to be a part of the team that started Eternity Bible College. He currently serves as the President of the college. Presently he also serves Cornerstone as an elder and occasionally you'll see him preaching.

Josh's passions are in the areas of Biblical Education, Inter-cultural Intelligence, and Global Ministry. He has a deep desire to see God put on display in new ways and new places as disciples are made and churches are planted and grown. In addition to his roles at Cornerstone and Eternity, he is also a founding board member of Radius International, a missions training organization committed to church planting based on cultural and language fluency.

Josh's heart for ministry is best expressed in Paul's words in 1 Thessalonians 2:1-12, especially verse 9 and Paul's idea of sharing not only the gospel but our very souls with people.


Alan Waters


Alan and Kathy Waters and their 3 daughters (Jennifer, Elizabeth and Amy) have lived in Simi Valley since 1989. They are one of the founding families that established Cornerstone Church in 1994 and have served faithfully in leading couples bibles studies and courses on child-raising. Alan has also lead short-term mission’s trips to Mexico and has humbly served Cornerstone as a greeter, an usher and in welcoming new visiting families to Cornerstone.

Alan currently leads and shepherds a community group on the west side of Simi. Alan and Kathy have been married 35 years and enjoy spending time with their two grandchildren in their leisure time.


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