Alleged gunman in Danville murder dies by suicide in Illinois

Sypien reportedly shoots self in parents’ front yard with police closing in

The man accused of killing Danville resident John Moore at a business park on Fostoria Way on Sunday died by suicide on Wednesday afternoon soon after being spotted by authorities near his parents’ house in Illinois.

Mark Allan Sypien, 51, succumbed to his injuries at a Geneva, Ill., hospital shortly after arrival, according to Chief Deputy Patrick Gengler of the Kane County Sheriff’s Office.

Sypien, who had a warrant issued for his arrest for murder Monday stemming from Moore’s slaying, apparently made his way to his hometown after fleeing from the Bay Area. Danville police said Sypien, who recently lived in Dublin, was last seen driving from the shooting scene in a Ford Escape with Illinois license plates.

According to Gengler, the murder suspect was spotted on Wednesday in the unincorporated town of St. Charles, Ill., leading Kane County Sheriff’s deputies and St. Charles police to respond to Sypien’s family’s home on Bittersweet Road around 3 p.m. (CST).

Police heard a single gunshot as they neared the house, and upon arrival, they found Sypien lying on the front lawn suffering from an apparent self-inflicted gunshot wound, Gengler said. No other people were injured.

Sypien was transported to a nearby hospital with life-threatening injuries, and he was pronounced dead shortly after arriving at the medical center, Gengler said.

"While we regret the further loss of life, we are pleased that we were able to resolve the case," Danville Police Chief Allan Shields said in a statement. "We are very grateful for the collaboration and assistance of the Contra Costa County Sheriff's Office in investigating this crime and bringing closure to the family and friends of Mr. Moore."

In a subsequent interview, Shields declined to reveal what detectives believe the motive was for Sypien allegedly killing Moore in Danville. The police chief the murder case is considered closed, but with their only suspect dead and not previously interviewed in the case, additional details would not be publicly released.

News media reports out of the Bay Area and Illinois state that Sypien dated Moore's daughter in the past but after the relationship unraveled, Moore had obtained a restraining order against Sypien in 2014 that was still active at the time of Moore's death.

Sypien, who was a St. Charles native, had a criminal history that included incidents of domestic violence and battery, according to the Kane County Chronicle (Illinois).

Moore, 76, was found dead from gunshot wounds behind a commercial building he owned in the 3400 block of Fostoria Way, behind Crow Canyon Medical Center, around 2:25 p.m. Moore was a member of the Rotary Club of Danville, and according to sister-in-law Patti Rinetti, is survived by three adult children, as well as a “bunch” of grandkids, nieces and nephews.

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Like this comment
Posted by A Mark Sypien Victim
a resident of Danville
on Feb 28, 2019 at 11:31 pm

This man Mark was evil. I too was a victim of Mark’s stalking, extortion, and harassment. He threatened me and my family, including two small children. It’s a shame he took another life on his way out. I feel for the Moore family. I knew Mark was capable of something like this, sorry he took one of yours. The world is a better place without Mark Sypien in it!

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