Ian Walsh.Táilte Tours, Facebook
Nathan Hanlon, of Castle View, Ballyneale in Carrick-on-Suir, in Co Tipperary, has been charged with the murder of Ian Walsh.
Walsh, aged in his 40s, was found unresponsive in a residence in Carrick-on-Suir and pronounced dead at the scene in the early hours of Monday, August 4.
After a post-mortem was conducted on Walsh's body, gardai confirmed that a murder investigation had commenced.
Hanlon, 19, was arrested on Wednesday morning, August 20, and was charged the following evening.
He appeared before a special sitting of Clonmel District Court on Thursday, where Sergeant Denis Ryan, of Clonmel Garda Station, gave evidence of arresting Hanlon and charging him with the murder of Walsh at Ravenswood, Cregg Road in Carrick-on-Suir, on August 2.
Hanlon made no reply when cautioned, Sgt Ryan told the court.
Judge Miriam Walsh granted requests from solicitor John M Joy for a psychological assessment and free legal aid for his client.
Judge Walsh remanded Hanlon in custody to appear in person at Clonmel District Court on August 26.
Before Hanlon was charged on Thursday, a source told Extra.ie: "Forensics are looking through his [Walsh's] digital footprint, his phone, social media profiles, and are looking to see if they can find anyone who was with him at the time of his death.
"By all accounts, Mr. Walsh was a gentleman and was not an aggressive man in any way, shape, or form."
Táilte Tours, which aims to promote Ireland's transport heritage, offered its condolences upon Walsh's passing earlier this month.
"It is with great sadness that the Táilte Tours team has learnt of the passing of Ian Walsh, signaller at Cork station and a huge supporter of our railtour operation.
"Ian ran five railtours of his own over the course of the mid to late 2000s, and was very much a pioneer in 'outside the box' tours in Ireland, starting them from locations such as Waterford and Limerick, in an era when tours were generally based in Dublin or Belfast.
"He was more than happy to pass his experience and expertise on when we started operations a few years ago; for those of you who enjoyed the 'surprise' rare track moves on our Cork-based railtours, you can thank Ian, who went far beyond the extra mile to ensure our operations went off without a hitch.
"He had a wonderful knowledge of the Iarnród Éireann system and its people, and had also developed a passion for Bus Éireann operations, diligently recording the last runs on several rural routes in the south east as they disappeared, quickly becoming a friend to bus drivers in the Cork and Waterford areas.
"All at Táilte Tours would like to extend our condolences to his family and friends.
"Thank you for everything Ian. Ar dheis Dé go raibh a anam dílis."