Updated

The family of the gunman who shot seven people at a San Diego pool party over the weekend says they feel "unbearable pain" and cannot explain the actions of Peter Selis.

Monique Clark, 35, was killed in the shooting Sunday.

Police killed 49-year-old Selis at the pool. Officials say Selis was despondent over a breakup.

"Our family feels the unbearable pain caused by Pete's senseless acts," the Selis family said in a statement sent to KFMB-TV (http://bit.ly/2pIw5kx ). "We cannot understand what would have caused Pete to do this. Words cannot express our profound grief and sorrow for all the victims and their families. On behalf of our family, we are so sorry that this happened. We ask that you please respect our privacy. We will miss our beloved Pete forever."

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Information from: KFMB-TV, http://www.kfmb.com/