Barista posts chilling Instagram picture of her dog on a remote walk before she's charged over the murder of a male cyclist whose body was discovered in bushland - as three others are arrested

A woman accused of murder posted a chilling message on Instagram the day after a man's body was dumped in bushland.

Barista Samantha Grace Guillerme, 24, was arrested on Tuesday morning and charged with murdering eastern Victorian man Jarrad Lovison in Moondarra, about 125km east of Melbourne, on April 16.

The next day, Ms Guillerme shared a photo on her social media page of her dog at the Lyrebird Forest Walk about 60km to the south of Moondarra.

Alongside the photo from April 17, she wrote the caption 'today's adventure'. 

The chilling Instagram post from accused murderer Samantha Grace Guillerme (pictured above)

Samantha Grace Guillerme (pictured above) has been remanded in custody until January 7 in relation to the murder of Jarrad Lovison

Jarrad Lovison, 38, went missing in mid-April but his remains were discovered by detectives in Moondarra, near Moe in Victoria's Gippsland region

The body of Mr Lovison, from Newborough near Moe in Victoria's Latrobe's Valley, was found on May 23 in bushland in Moondarra. 

Guillerme was arrested after detectives searched a property on Coalville Rd, Moe  - where a white Toyota was seized as part of the ongoing police investigation. 

Early on Wednesday morning, a Victorian Missing Persons squad made three additional arrests.

A 28-year-old man was arrested at a home in Willow Grove, a 47-year-old Moe man was arrested and a 44-year-old Trafalgar woman was detained at the same March St home. 

The trio remain in custody and the investigation remains ongoing.

'It is expected that further warrants will be executed throughout the day by detectives from both the Missing Persons Squad and Morwell Crime Investigation Unit,' Leading Senior Constable Natalie Dean said.  

Guillerme's Facebook page says she worked at a cafe called Eat Live Fresh in Trafalgar.

Her Instagram bio meanwhile reads 'work hard, dream big, invest in yourself'. 

She was remanded to return to court on January 7. 

Mr Lovison's friend Adam Reddiex said the arrest was 'a long time coming'.  

'I feel hopeful we can finally get to the bottom of it,' the friend told the Herald Sun. 

Guillerme was arrested after police searched a property in Moe and was remanded in custody to return to court on January 7

Mr Lovison was riding his bike the night he mysteriously disappeared. Police are investigating a report the bike was seen resting against a tree in Tanjil South, north of Moe, on April 18

Mr Lovison was last spotted in Moe, Latrobe Valley. A close friend of his said the arrest was 'a long time coming'

'Police have done an incredible job. We are so thankful to them for going hard with this. They haven't rested since he has been missing.'

A friend of Guillerme said the woman came from a good family and had 'a bright future'.

Police are investigating a report Mr Lovison's bike was seen resting against a tree in Tanjil South, north of Moe, on April 18.

A white wagon is believed to have taken the bike away about two hours later. 

He was last seen riding the green mountain bike on the Moe-Walhalla Rd in the early hours of April 16.