King Heard

Booking photo of King Heard (Cook County sheriff / March 22, 2012)

A 64-year-old man was ordered held in lieu of $750,000 bail today after he called 311 and threatened Mayor Rahm Emanuel, prosecutors said.

King Heard, of the 4500 block of North Sheridan Road, called the city's 311 line on March 7 and threatened the mayor, said Andy Conklin, a spokesman for the Cook County State's Attorney's office.

The man said told the 311 operator that the mayor "don't own Chicago" and added, "I'm going to vacate everybody and I'm going to lay him down," according to prosecutors.

The call lasted less than two minutes and the man made several comments that were not intelligible, said Conklin.

The operator noticed the man's number on the caller identification and then contacted police.

Police called the number back and matched the man's voice with a recording that was made of the original call, Conklin said.

Heard previously was convicted of making a similar threat against a public official in 1991. At that point he was sentenced to 30 months of mental health probation, said Conklin.

csadovi@tribune.com