Getting _jsonparsefailure in logstash

Thanks, I removed the comma, I truncated the original file and missed the comma.

Unfortunately, this was the output I received. I looks like it was successful in putting the data into the message field, but the message field was not parsed into their respective fields.

Any thoughts?

Logstash output:

Trouble parsing json {:source=>"message", :raw=>"{\n  \"log\": {\n    \"version\": \"1.2\",\n    \"creator\": {\n      \"name\": \"WebInspector\",\n      \"version\": \"537.36\"\n    },\n    \"pages\": [\n      {\n        \"startedDateTime\": \"2015-10-19T18:05:37.887Z\",\n        \"id\": \"page_3\",\n        \"title\": \"https://demo.com/\",\n        \"pageTimings\": {\n