Head writer Tony Tost prompted fans yet again of more of Walter Longmire mysteries coming in season 4 ahead of the show's debut on Netflix this summer.

Tost posted to his Twitter account another puzzling song that could bear meaning of road to loneliness and betrayal for the story's central character and protagonist.

The reported tweet read, "Now playing in the #Longmire writer's room: Van Morrison-Who Was That Masked Man?

The said song from Morrison contains lyric which reads, "Ain't it lonely, when you live with a gun and well you can't slow down and you can't turn around."

This can be noted to be third Twitter post by Longmire season 4 writer before the series takes off for the fourth installment in its new home network.

On January 14, Tost also posted a second tweet that continues to boggle the mind of the TV fans. The writer wrote this time that Miranda Lambert's 2014 platinum hit single, 'Automatic', was being played in the writer's room.

The reported tweet read, "Now playing in the #Longmire writer's room: Miranda Lambert-Automatic."

The first tweet posted last December 15 read, "Now playing in the #Longmire writer's room...Tanya Tucker-What's Your Mama's Name?"

The first two posts claimed that these are hints involving Cady's mother who was killed in the previous season that drove Walter to go back to law enforcement and also opened an opportunity for himself to solve the puzzle regarding the death of criminal Miller Beck. 

Could these Twitter posts from Tost really have something to do with the writing of the storyline for the new season?  There seems to be a spoiler blackout from the time when A&E and Netflix announced the deal about the show's renewal of the series.   

Other reports claim that casting calls for extras has already began in time for filming set to take off this March.

Longmire season 4 debuts on Netflix and premieres summer this year.