Gardner may be tied to several unsolved assaults

RIVERSIDE - A man who admitted killing two San Diego County teens possibly implicated himself in several unsolved assaults, including at least one case in Riverside County, but confessed to no other slayings, officials said today.

John Albert Gardner III's statements to sheriff's detectives during a post-sentencing interrogation -- after he was ordered to spend the rest of his life behind bars -- suggested the confessed killer ''may have been involved in other criminal activity'' in San Diego, Riverside and possibly San Bernardino counties, San Diego County sheriff's Lt. Dennis Brugos said.

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