Chicago (CBS) — A man wanted for murder in California shot himself Wednesday afternoon in unincorporated St. Charles Township, police said.

Around 3 p.m., Kane County Sheriff’s deputies and St. Charles police responded to a residence in the 3N600 block of Bittersweet Road after a reported sighting of Mark Allan Sypien.

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(Credit: Danville Police Department)

Upon arrival, police heard a single gunshot and found a man on the front lawn suffering from what appeared to be a self-inflicted gunshot wound. He was identified as Sypien.

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The 51-year-old is a suspect in the shooting death of 76-year-old John Moore in Danville, California.

The shooting on Sunday was the first homicide in Danville in three years.

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The Kane County Sheriff’s office said Sypien was transported to an area hospital with potentially life-threatening injuries.