Convicted killer giggles in court as judge describes murder. Judge asks why he’s laughing — and isn’t amused by his answer.

A convicted killer was caught on video smiling and giggling in a Florida courtroom earlier this week as the judge described the murder. The judge soon asked why he was laughing — and most definitely wasn’t amused by his answer.

Marcus Terry, 43, was found guilty last December of second-degree murder for killing his cellmate in the Dade Correctional Institute in Homestead in 2021, WTVJ-TV reported.

‘I’m not sure why you’re laughing.’

Terry was back in court Tuesday, and his attorney Steven Yermish requested that Judge Ellen Sue Venzer grant his client a new trial, claiming that inadmissible evidence made it into the December trial, the station said.

Venzer denied the motion for the new trial and continued with Terry’s sentencing, WTVJ reported.

The judge described the murder — during