Third person arrested in Hertfordshire murder investigation

Adam Watt died from his injuries after he was stabbed outside his house. Credit: Hertfordshire Police

Police investigating the death of a man from Hemel Hempstead have arrested a 22-year-old man on suspicion of murder.

Adam Watt, 38, died after he was stabbed outside his home on the early hours of 8 January.

Officers launched a murder investigation and earlier arrested a 47-year-old woman and 18-year-old man on suspicion of conspiracy to murder.

All three remain in police custody.