India, Dec. 7 -- Idaho murderer Bryan Kohberger is trying to befriend notorious serial killers nationwide while serving multiple life sentences for the brutal slayings of four young students. Kohberger, 31, has been reaching out to other high-profile inmates from inside his cell at the Idaho Maximum Security Institution in Kuna, said Chris McDonough, a retired homicide detective with the Cold Case Foundation, according to Fox News Digital.

"He's tried reaching out to other serial killers, but I don't know whether any relationships have formed," McDonough told the outlet, citing a source.

McDonough added, "Both inside and outside - he's trying to communicate with people outside the walls."

McDonough further said that Kohberger "sees him...