A state police trooper seriously wounded in the 2014 sniper attack outside the Blooming Grove state police barracks put alleged shooter Eric Matthew Frein and his parents on notice that he intends to sue them.

Scranton attorney Vincent Cimini recently filed court documents on behalf of Trooper Alex T. Douglass of Olyphant against Mr. Frein, his father, Eugene Frein, and mother, Deborah Frein, all of Canadensis.

A sniper opened fire outside the barracks on Sept. 12, 2014, wounding Trooper Douglass and killing Trooper Bryan K. Dickson III of Dunmore. As of April, Trooper Douglass had undergone 17 surgeries and spent nine months in and out of the hospital.

Mr. Frein was named a suspect shortly after the shooting. He evaded capture for 48 days in the woods of Monroe and Pike counties before he was discovered near an abandoned airport hangar in Monroe County. He pleaded not guilty and is awaiting trial in Pike County Court on charges of homicide, aggravated assault and multiple other offenses. Prosecutors are seeking the death penalty.

Mr. Cimini of the law firm Cognetti & Cimini filed a writ of summons on behalf of Trooper Douglass in Monroe County Court last month. A writ of summons notifies a person a lawsuit will be filed, but does not contain any details. That information will be provided once the complaint is filed.

Reached this week, a clerk in Mr. Cimini's office said he could not comment on the case.

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tbesecker@timesshamrock.com, @tmbeseckerTT on Twitter